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Deng Xiaoping

Deng Xiaoping ( Pronounced approximately "dehng shyau-ping" ; August 22, 1904 – February 19, 1997) was a prominent Chinese politician and reformer, and the late leader of the Communist Party of China (CPC). Deng never held office as the head of state or the head of government, but served as the de facto leader of the People's Republic of China from 1978 to the early 1990s. He developed "Socialism with Chinese characteristics" and Chinese economic reform, also known as the "socialist market economy", and opened China to the global market. During his paramount leadership, his official state positions were Chairman of the National Committee of the Chinese People's Political Consultative Conference from 1978–1983 and Chairman of the Central Military Commission of the People's Republic of China from 1983–1990, while his official party positions were Vice Chairman of the Communist Party of China from 1977–1982 and Chairman of the Central Military Commission of the Communist Party of China from 1981–1989.

Quotes

 * It doesn't matter whether the cat is black or white, as long as it catches mice.
 * Quoted in Hung Li China's Political Situation and the Power Struggle in Peking (1977), p. 107
 * According to Chambers Dictionary of Quotations (1993), p. 315, this quote is from a speech at the Communist Youth League conference in July 1962.

 * The United States brags about its political system, but the [American] President says one thing during the election, something else when he takes office, something else at midterm and something else when he leaves.
 * When asked about China's political stability by a group of American professors in 1983, as quoted in The Pacific Rim and the Western World: Strategic, Economic, and Cultural Perspectives (1987), p. 105

 * A basic contradiction between socialism and the market economy does not exist.
 * As quoted in Daily report: People's Republic of China, Editions 240-249 (1993), p. 30
 * Variant: There are no fundamental contradictions between a socialist system and a market economy.
 * Interview, Time, 4 November 1985.

 * When our thousands of Chinese students abroad return home, you will see how China will transform itself.
 * As quoted in Forbes, Vol. 176, Editions 7-13 (2005), p. 79

 * We mustn't fear to adopt the advanced management methods applied in capitalist countries (...) The very essence of socialism is the liberation and development of the productive systems (...) Socialism and market economy are not incompatible (...) We should be concerned about right-wing deviations, but most of all, we must be concerned about left-wing deviations.
 * Cited by António Caeiro in Pela China Dentro (translated), Dom Quixote, Lisboa, 2004. ISBN 972-20-2696-8
 * "If you open a window for fresh air, you have to expect some flies to blow in."

Speech at the Special Session of the U.N. General Assembly (1974) (excerpts)
Speech By Chairman of the Delegation of the People’s Republic of China, Deng Xiaoping, At the Special Session of the U.N. General Assembly
 * The Chinese Government extends its warm congratulations on the convocation of this session and hopes that it will make a positive contribution to strengthening the unity of the developing countries, safeguarding their national economic rights and interests and promoting the struggle of all peoples against imperialism, and particularly against hegemonism.
 * At present, the international situation is most favourable to the developing countries and the peoples of the world. More and more, the old order based on colonialism, imperialism and hegemonism is being undermined and shaken to its foundations. International relations are changing drastically. The whole world is in turbulence and unrest. The situation is one of “great disorder under heaven,” as we Chinese put it. This “disorder” is a manifestation of the sharpening of all the basic contradictions in the contemporary world. It is accelerating the disintegration and decline of the decadent reactionary forces and stimulating the awakening and growth of the new emerging forces of the people.
 * A large number of Asian, African and Latin American countries have achieved independence one after another and they are playing an ever greater role in international affairs. As a result of the emergence of social-imperialism, the socialist camp which existed for a time after World War II is no longer in existence. Owing to the law of the uneven development of capitalism, the Western imperialist bloc, too, is disintegrating. Judging from the changes in international relations, the world today actually consists of three parts, or three worlds, that are both interconnected and in contradiction to one another.
 * The two superpowers, the United States and the Soviet Union, are vainly seeking world hegemony. Each in its own way attempts to bring the developing countries of Asia, Africa and Latin America under its control and, at the same time, to bully the developed countries that are not their match in strength.
 * The two superpowers are the biggest international exploiters and oppressors of today. They are the source of a new world war. They both possess large numbers of nuclear weapons. They carry on a keenly contested arms race, station massive forces abroad and set up military bases everywhere, threatening the independence and security of all nations. They both keep subjecting other countries to their control, subversion, interference or aggression. They both exploit other countries economically, plundering their wealth and grabbing their resources.
 * The numerous developing countries have long suffered from colonialist and imperialist oppression and exploitation. They have won political independence, yet all of them still face the historic task of clearing out the remnant forces of colonialism, developing the national economy and consolidating national independence. These countries cover vast territories, encompass a large population and abound in natural resources. Having suffered the heaviest oppression, they have the strongest desire to oppose oppression and seek liberation and development. In the struggle for national liberation and independence, they have demonstrated immense power and continually won splendid victories. They constitute a revolutionary motive force propelling the wheel of world history and are the main force combating colonialism, imperialism, and particularly the superpowers.
 * The two superpowers have created their own antithesis. Acting in the way of the big bullying the small, the strong domineering over the weak and the rich oppressing the poor, they have aroused strong resistance among the Third World and the people of the whole world. The people of Asia, Africa and Latin America have been winning new victories in their struggles against colonialism, imperialism, and particularly hegemonism. The Indochinese peoples are continuing to press forward in their struggles against U.S. imperialist aggression and for national liberation.
 * The hegemonism and power politics of the two superpowers have also aroused strong dissatisfaction among the developed countries of the Second World. The struggles of these countries against superpower control, interference, intimidation, exploitation and shifting of economic crises are growing day by day. Their struggles also have a significant impact on the development of the international situation.
 * As we all know, in the last few centuries colonialism and imperialism unscrupulously enslaved and plundered the people of Asia, Africa and Latin America. Exploiting the cheap labour power of the local people and their rich natural resources and imposing a lopsided and single-product economy, they extorted superprofits by grabbing low-priced farm and mineral products, dumping their industrial goods, strangling national industries and carrying on an exchange of unequal values. The richness of the developed countries and the poverty of the developing countries are the result of the colonialist and imperialist policy of plunder.
 * In many Asian, African and Latin American countries that have won political independence, the economic lifelines are still controlled by colonialism and imperialism in varying degrees, and the old economic structure has not changed fundamentally. The imperialists, and particularly the superpowers, have adopted neo-colonialist methods to continue and intensify their exploitation and plunder of the developing countries. They export capital to the developing countries and build there a “state within a state” by means of such international monopoly organizations as “trans-national corporations” to carry out economic plunder and political interference. Taking advantage of their monopoly position in international markets, they reap fabulous profits by raising the export prices of their own products and forcing down those of raw materials from the developing countries. Moreover, with the deepening of the political and economic crises of capitalism and the sharpening of their mutual competition, they are further intensifying their plunder of the developing countries by shifting the economic and monetary crises on to the latter.
 * Plunder and exploitation by colonialism, imperialism, and particularly by the superpowers, are making the poor countries poorer and the rich countries richer, further widening the gap between the two. Imperialism is the greatest obstacle to the liberation of the developing countries and to their progress. It is entirely right and proper for the developing countries to terminate imperialist economic monopoly and plunder, sweep away these obstacles and take all necessary measures to protect their economic resources and other rights and interests.
 * The doings of imperialism, and particularly the superpowers, can in no way check the triumphant advance of the developing countries along the road of economic liberation.
 * We maintain that the safeguarding of political independence is the first prerequisite for a Third World country to develop its economy. In achieving political independence, the people of a country have only taken the first step, and they must proceed to consolidate this independence, for there still exist remnant forces of colonialism at home and there is still the danger of subversion and aggression by imperialism and hegemonism. The consolidation of political independence is necessarily a process of repeated struggles. In the final analysis, political independence and economic independence are inseparable. Without political independence, it is impossible to achieve economic independence; without economic independence, a country’s independence is incomplete and insecure.
 * The developing countries have great potentials for developing their economy independently. As long as a country makes unremitting efforts in the light of its own specific features and conditions and advances along the road of independence and self-reliance, it is fully possible for it to attain gradually a high level of development never reached by previous generations in the modernization of its industry and agriculture. The ideas of pessimism and helplessness spread by imperialism in connection with the question of the development of developing countries are all unfounded and are being disseminated with ulterior motives.
 * By self-reliance we mean that a country should mainly rely on the strength and wisdom of its own people, control its own economic lifelines, make full use of its own resources, strive hard to increase food production and develop its national economy step by step and in a planned way. The policy of independence and self-reliance in no way means that it should be divorced from the actual conditions of a country; instead, it requires that distinction must be made between different circumstances, and that each country should work out its own way of practising self-reliance in the light of its specific conditions. At the present stage, a developing country that wants to develop its national economy must first of all keep its natural resources in its own hands and gradually shake off the control of foreign capital. In many developing countries, the production of raw materials accounts for a considerable proportion of the national economy.
 * Self-reliance in no way means “self-seclusion” and rejection of foreign aid. We have always considered it beneficial and necessary for the development of the national economy that countries should carry on economic and technical exchanges on the basis of respect for state sovereignty, equality and mutual benefit, and the exchange of needed goods to make up for each other’s deficiencies.
 * We hold that in both political and economic relations, countries should base themselves on the Five Principles of mutual respect for sovereignty and territorial integrity, mutual non-aggression, non-interference in each other’s internal affairs, equality and mutual benefit, and peaceful coexistence. We are opposed to the establishment of hegemony and spheres of influence by any country in any part of the world in violation of these principles.
 * We hold that all countries, big or small, rich or poor, should be equal, and that international economic affairs should be jointly managed by all the countries of the world instead of being monopolized by the one or two superpowers. We support the full right of the developing countries, which comprise the great majority of the world’s population, to take part in all decision-making on international trade, monetary, shipping and other matters.
 * We hold that international trade should be based on the principles of equality, mutual benefit and the exchange of needed goods. We support the urgent demand of the developing countries to improve trade terms for their raw materials, primary products and semi-manufactured and manufactured goods, to expand their market and to fix equitable and favourable prices. We support the developing countries in establishing various organizations of raw material exporting countries for a united struggle against colonialism, imperialism and hegemonism.
 * We hold that economic aid to the developing countries must strictly respect the sovereignty of the recipient countries and must not be accompanied by any political or military conditions and the extortion of any special privileges or excessive profits. Loans to the developing countries should be interest-free or low-interest and allow for delayed repayment of capital and interest, or even reduction and cancellation of debts in case of necessity. We are opposed to the exploitation of developing countries by usury or blackmail in the name of aid.
 * We hold that technology transferred to the developing countries must be practical, efficient, economical and convenient for use. The experts and other personnel dispatched to the recipient countries have the obligation to pass on conscientiously technical know-how to the people there and to respect the laws and national customs of the countries concerned. They must not make special demands or ask for special amenities, let alone engage in illegal activities.
 * If one day China should change her colour and turn into a superpower, if she too should play the tyrant in the world, and everywhere subject others to her bullying, aggression and exploitation, the people of the world should identify her as social-imperialism, expose it, oppose it and work together with the Chinese people to overthrow it.
 * History develops in struggle, and the world advances amidst turbulence. The imperialists, and the superpowers in particular, are beset with troubles and are on the decline. Countries want independence, nations want liberation and the people want revolution — this is the irresistible trend of history. We are convinced that, so long as the Third World countries and people strengthen their unity, ally themselves with all forces that can be allied with and persist in a protracted struggle, they are sure to win continuous new victories.

Speech at the Opening Ceremony of the National Conference on Science (March 1978) (excerpts)
Speech At the Opening Ceremony of the National Conference On Science
 * Vast numbers of scientists, technicians, workers, peasants and armymen are actively participating in the movement for scientific experiment. Young people are becoming interested in science and eager to study it. The entire nation is setting out with tremendous enthusiasm on the march towards the modernization of our science and technology. Splendid prospects lie before us.
 * Our people are undertaking the historic mission of modernizing our agriculture, industry, national defence and science and technology within the present century, in order to transform China into a modern and powerful socialist state.
 * The key to the four modernizations is the modernization of science and technology. Without modern science and technology, it is impossible to build modern agriculture, modern industry or modern national defence. Without the rapid development of science and technology, there can be no rapid development of the economy. The Central Committee of the Party decided to call this national science conference in order to bring home to the Party and country the importance of science, to map out a programme, to commend advanced units and individuals and to discuss measures for speeding up the development of science and technology in China.
 * Marxism has consistently treated science and technology as part of the productive forces. More than a century ago, Marx said that expansion of the use of machinery in production requires the conscious application of natural science. Science too, he said, is among the productive forces.The development of modern science and technology has bound science and production ever more tightly together. It is becoming increasingly clear that science and technology are of tremendous significance as productive forces.
 * Modern science and technology are now undergoing a great revolution. The advances over the last three decades have not been limited to particular scientific theories or production techniques, nor have they just represented progress and reform in the usual sense. Rather, profound changes have taken place and new leaps have been made in almost all areas. A whole range of new sciences and technologies is continuously emerging. Modern science opens the way for the improvement of production techniques and determines the direction of their development.
 * In societies under the rule of exploiting classes, there are various kinds of mental workers. Some are wholly in the service of the reactionary ruling classes and thus stand in an antagonistic relationship to manual workers. But even in such a situation, as Lenin said, many of the intellectuals engaged in scientific and technical work are themselves not capitalists but scholars, even though they are filled with bourgeois prejudices. The fruits of their work are used by the exploiters, but in general this is determined by the social system and not by their own free choice. They are totally different from those politicians who rack their brains for expedients of direct service to the reactionary ruling classes.
 * Science and technology are part of the productive forces. Mental workers who serve socialism are part of the working people. A correct understanding of these two facts is essential to the rapid development of our scientific enterprises. Once we have accepted these premises, it follows that we must make every effort to develop scientific research and education in science and to encourage the revolutionary initiative of our scientific, technical and educational workers.
 * Backwardness must be recognized before it can be changed. One must learn from those who are more advanced before he can catch up with and surpass them. Of course, in order to raise China’s scientific and technological level we must rely on our own efforts, develop our own creativity and persist in the policy of independence and self-reliance. But independence does not mean shutting the door on the world, nor does self-reliance mean blind opposition to everything foreign. Science and technology are part of the wealth created in common by all mankind. Every people or country should learn from the advanced science and technology of others. It is not just today, when we are scientifically and technologically backward, that we need to learn from others. Even after we catch up with the most advanced countries, we shall still have to learn from them in areas where they are particularly strong.
 * China’s revolution exerts an attraction on all the revolutionary people in the world, who identify with it. Our drive for socialist modernization has enlisted their interest and support and will continue to do so ever more widely. We must endeavour to increase international academic exchanges and expand our friendly contacts and co-operation with scientific circles in other countries. We would like to express our heartfelt thanks to all friends abroad who have helped us in science and technology.
 * For the modernization of science and technology, we must have a mighty scientific and technical force serving the working class, a force which is both “red and expert” and includes a large number of scientists, engineers and technicians who are first rate by world standards. It will not be easy for us to build up such a force.
 * In our socialist society, everyone should remould himself — not just persons who have not changed their basic stand, but everybody. We should all engage in a continued process of learning and transforming our thinking. We should all study fresh problems, absorb what is new and consciously guard against corrosion by bourgeois ideology. In this way, we will be better able to carry out the glorious and arduous task of building a modern, powerful socialist country.
 * Scientists and technicians should concentrate their energies on their professional work. When we say that at least five-sixths of their work time should be left free for professional work, this is meant as the minimum requirement. It would be better still if more time were made available. If someone works seven days and seven nights a week to meet the needs of science or production, it shows his lofty and selfless devotion to the cause of socialism. We should commend, encourage and learn from such people. It has been demonstrated countless times that only those who devote themselves heart and soul to their work, who constantly strive for perfection and fear neither hardship nor disappointment can reach the pinnacles of science. We cannot demand that scientists and technicians, or at any rate, the overwhelming majority of them, study stacks of books on political theory, join in numerous social activities and attend many meetings not related to their work.
 * The discovery and training of talented people by our scientists and teachers is in itself an achievement and a contribution to the country. The history of science shows us the tremendous importance of discovering genuinely talented persons. Some of the world’s scientists look upon the finding and training of new talent as the crowning achievement of a lifetime devoted to science. There is much to be said for this view.
 * We must give full play to democracy and follow the mass line, trusting the judgement of the scientists and technicians in such matters as the evaluation of scientific papers, the assessment of the competence of professional personnel, the elaboration of plans for scientific research and the evaluation of research results. When views diverge on scholarly questions, we must follow the policy of “letting a hundred schools of thought contend” and encourage free discussion. In scientific and technical work, we must listen closely to the opinions of the experts and leave them free to use all their skills and talents so as to achieve better results and reduce our errors to the minimum.
 * What is right and what is wrong in regard to political line has been basically clarified, we have mapped out a programme and the measures for carrying it out, and the masses are already on the move.

Interview with Oriana Fallaci (1980)
Deng Xiaoping interviewed by Oriana Fallaci (1980)
 * But… look, Chairman Mao made mistakes, yes. Nonetheless, he was one of the principal founders of the Communist Party of China and the People’s Republic of China. Thus, when we look at his merits together with his mistakes, we think that his mistakes take second place, while his merits take first. And this means that the contribution he made to the Chinese revolution cannot be forgotten and that the Chinese people will always cherish his memory; they will always think of him as one of the founders of the party and of the republic.

 * According to Marx, socialism, which is the first stage of Communism, covers a very long period. And, during this period, we will try to fulfill the principle “From each according to his ability, to each according to his work.” In other words, we will blend the interests of the individual with the interests of the country. There is no other way to mobilize interest in production among the masses, let’s admit it. And since the capitalist West will be helping us to overcome the backwardness we find ourselves in — the poverty that afflicts us — it doesn’t seem opportune to get caught up in the subtleties. However things go, the positive effects will be greater than the negative effects.

 * Democracy and dictatorship of the proletariat are two parts of the same antithesis, and proletarian democracy is far superior to its capitalist counterpart. We are emphasizing the Four Principles that we must adhere to: the principle of socialism, the principle of dictatorship of the proletariat, the principle of Marxism and Leninism elaborated in Mao Zedong Thought, and the principle of leaders supported by the Communist Party of China. So, you see, that even the principle of dictatorship of the proletariat has remained untouched and untouchable.

 * War is inevitable because superpowers exists and because imperialism exists. And we are not the only ones who think this way; in every part of the world today, many people are convinced that war will break out in the 1980s. The next ten years will be very, very dangerous. They’re terrifying. We should never forget this, because this is the only way we will prevent war from breaking out immediately; this is the only way we can defer it. Not by chatting about peace and detente. Westerners have been talking about peace and detente since the end of the Second World War. So has the Soviet Union. But where is this peace, where is this detente? Year to year, if not day to day, the hot spots are growing; the factors that will lead to World War Three are increasing; and still they talk about detente and peace.

 * China is poor and our military is backwards, I agree. But we have our traditions, you know. And for quite some time, using inadequate and miserable equipment, we have cultivated the art of defeating well-armed enemies. Our territory is extremely vast, and in this vast territory the people have learned the necessary resistance for a long war — to bend the strength of others through their weaknesses. Whoever wants to invade China should remember this truth, and I believe that the Soviets remember it well.

 * Hmm… listen, I have made mistakes — yes, sometimes serious ones. But I never made them with bad intentions; I always made them with good intentions. My conscience is clear about my own life. Hmm… listen, I think I could give myself fifty percent. Yes, fifty percent would be all right.

Misattributed or apocryphal

 * 致富光荣 (zhìfù guāngróng: To get rich is glorious!)
 * Deng is commonly quoted with this phrase in western media but there is no proof that he actually said it
 * However, this phrase in Chinese is more accurately translated as "wealth is glorious," where wealth can have a very general meaning, including knowledge, personal relationships, family: anything of value. Understood this way, the quote is not as directly controversial as a ideological/political statement, and so it is not hard to believe that he really did say this.

 * One Country, Two systems.
 * Actually coined by Mao Zedong, popularized by Deng Xiaoping

 * Let some people get rich first.
 * "Nanxun" (Southern Tour) of 1992. Quoted in The Economist (31 May 2001). A summarization of several quotations from Deng Xiaoping, known in Chinese as, "让一部分人先富起来", News of the Communist Party of China World Development Report 2009 The Nanxun Legacy and China's Development in the Post-Deng Era.

 * Seek Truth from Facts.
 * Actually from the Han Shu 《漢書·河間獻王劉德傳》, not coined by Mao Zedong nor by Deng Xiaoping, popularized by various people before them.

 * Crossing the river by feeling the stones.
 * 摸着石头过河 (mō zhe shítou guòhé)
 * Meaning: proceed gradually, by experimentation.
 * Traditional saying, first used in Chinese Communist context by, 1980 December 16, then popularized by Deng 1984 October. Frequently misattributed to Deng.

 * We no longer know what socialism is, or how to get there, and yet it remains the goal.
 * First attributed to Deng by McKenzie Wark, who was actually paraphrasing a similar sentence by him from a talk with Alfonso Guerra in 1987: "Our basic goal — to build socialism — is correct, but we are still trying to figure out what socialism is and how to build it".

Quotes about Deng Xiaoping

 * More significant than developments in the Middle East, the death of Mao Zedong in September 1976 was not followed by any abandonment of China’s American alignment. As so often during the Cold War, rivalries within Communist parties played a major role in international developments. The attempt by the radical ‘Gang of Four’, including Mao’s widow, to gain power was thwarted by Hua Guofeng, the Premier, who became Chairman of the Central Committee. He, in turn, became less powerful as his rival, Deng Xiaoping, rose. Deng had been dismissed as Vice-Premier of the State Council earlier in 1976 as a result of the influence of the Gang of Four. Deng was reinstated in July 1977 and, while supporting control by the Communist Party, outmanoeuvred the more ideological Hua by emphasising pragmatism. Deng’s leadership was confirmed in December 1978 at the Third Plenum of the 11th CCP Congress. He remained in power until 1997.
 * Jeremy Black, The Cold War: A Military History (2015)
 * Deng Xiaoping favoured not only the alignment with America, but also a re-evaluation in terms of economic liberalisation rather than a revolution focused on Marxist purity. The modernisation of Taiwan, South Korea and Singapore convinced Deng that capitalist modernisation worked. Formal diplomatic relations with America were established on 1 January 1979 and, later that year, Deng became the first Chinese Communist leader to pay an official visit to the USA. On this, Deng visited the NASA facilities in Houston and the Boeing headquarters in Seattle. He appreciated the significance of American technology and the need for modernisation were China to match this. One of the desired outcomes of this visit was to inaugurate what would become a massive influx of Chinese students that became an astounding transfer of human and technological skills. In 1978, moreover, a treaty of friendship with Japan helped foster stability in East Asia and marked China’s willingness to ease relations with the Western bloc. In 1979, the Americans ended the Taiwan Patrol Force, which, from 1950, had policed the waters between China and Taiwan, protecting the latter.
 * Jeremy Black, The Cold War: A Military History (2015)

 * It could hardly have been anticipated, for example, that a long-time follower of Mao Zedong, at five feet in height barely visible beside him, would use the power of the Chinese Communist Party to give his country a market economy: "It doesn't matter if the cat is white or black," Deng Xiaoping liked to say, "so long as it catches mice." Deng's views on cats—by which he meant ideologies—got him into trouble with Mao during the Cultural Revolution, and at the time of Nixon's 1972 visit to Beijing, Deng was in exile with his family growing vegetables, chopping wood, working in a tractor repair plant, and nursing his son, whom Red Guards had thrown from the roof of a building, permanently paralyzing him. Mao called Deng back to Beijing the following year, acknowledging that he had "done good deeds seventy percent of the time and bad deeds thirty percent"—only to purge him again in 1976. Always resilient, Deng fled to southern China, hid out, and patiently awaited yet another rehabilitation. It came shortly after Mao's death in September of that year, and by the end of  1978 Deng had outmaneuvered all of his rivals to become China's "paramount" leader. He had already by then turned the tables on his predecessor by claiming that Mao had been right seventy percent of the time and wrong thirty percent: this now became party doctrine. Among the "right" things Mao had done were reviving China as a great power, maintaining the Communist Party's political monopoly, and opening relations with the United States as a way of countering the Soviet Union. Among the "wrong" things was Mao's embrace of a disastrously administered command economy. With this pronouncement on percentages, Deng won himself room to pursue a very different path.
 * John Lewis Gaddis, The Cold War: A New History (2006),
 * Deng Xiaoping decided in 1979 that China could teach Vietnam a lesson through a brief but decisive invasion, forcing the diversion of Vietnamese forces from Cambodia and delivering a blow to the Vietnamese-Soviet (anti-China) alliance. His low opinion of the Vietnamese ignored the fact that they had routed France and outlasted the United States. The Chinese miscalculation was not an unmitigated blunder: Deng cut his losses by keeping the conflict short, and the war exposed China's military weakness, allowing him to consolidate power and reform the People's Liberation Army. Operationally, though, the war was a military disaster for China. China suffered massive losses and failed to draw the Vietnamese out of Cambodia.
 * David C. Gompert, Hans Binnendijk, and Bonny Lin,

 * It was no longer possible to say that only the Western world could become rich through capitalism, so a new narrative took hold: although a few developing countries might be able to enter global markets from the periphery, it is only because they are very small, almost insignificant. Strangely enough, today you sometimes hear the opposite: that developing countries might make it, but only if they are very large. This is due to the transformation of two giants, China and India, which for decades were held back by, in one case, a communist despot, and in the other a democratic but strictly protectionist command economy. Therefore, people said that Chinese and Indians will be successful all over the world – except in China and India. But then, in 1976, China’s dictator Mao Zedong, as the US economist Steven Radelet put it, ‘single-handedly and dramatically changed the direction of global poverty with one single act: he died’. His successor, Deng Xiaoping, began to accept the private enterprise that peasants and villagers secretly engaged in and extended it to the entire economy. All the restrained creativity and ambition was finally let loose and China grew at record speed. Ironically, intellectuals around the world – modern-day Max Webers – soon explained that this is itself not that strange, as Confucianism made it easy to modernize the economy.
 * Johan Norberg, The Capitalist Manifesto: Why the Global Free Market Will Save the World (2023)

 * I knew Deng, and I had a wonderful, frank discussion with him, and he said, ‘ happened in Tiananmen Square is none of your business—it’s a domestic issue, and we do whatever we want,’ and I said, ‘You’re right. It is none of our business. But the consequences of What what you did in the world and to our relations are our business. And that’s what I’m here to talk about.’
 * Brent Scowcroft, quoted in Jeffrey Goldberg, "Breaking Ranks", The New Yorker (October 23, 2005)

title: Deng Xiaoping


text:
The Prophet

The Prophet (1923) is a book of 26 poetic essays written by Lebanese-American poet, artist, and philosopher Khalil Gibran. (Full text on line in multiple formats)

On Love

 * When love beckons to you, follow him, Though his ways are hard and steep. And when his wings enfold you yield to him, Though the sword hidden among his pinions may wound you. And when he speaks to you believe in him, Though his voice may shatter your dreams as the north wind lays waste the garden.
 * p. 11

 * For even as love crowns you so shall he crucify you. Even as he is for your growth so is he for your pruning.
 * p. 11

 * Like sheaves of corn he gathers you unto himself. He threshes you to make you naked. He sifts you to free you from your husks. He grinds you to whiteness. He kneads you until you are pliant; And then he assigns you to his sacred fire, that you may become sacred bread for God's sacred feast. All these things shall love do unto you that you may know the secrets of your heart, and in that knowledge become a fragment of Life's heart.  But if in your fear you would seek only love's peace and love's pleasure, Then it is better for you that you cover your nakedness and pass out of love's threshing floor, Into the seasonless world where you shall laugh, but not all of your laughter, and weep, but not all of your tears.
 * p. 12

 *  Love gives naught but itself and takes naught but from itself, Love possesses not nor would it be possessed:  For love is sufficient unto love.
 * p. 13

 * When you love you should not say, "God is in my heart," but rather, "I am in the heart of God." And think not you can direct the course of love, for love, if it finds you worthy, directs your course.
 * p. 13

 * Love has no other desire but to fulfill itself. But if you love and must needs have desires, let these be your desires: To melt and be like a running brook that sings its melody to the night. To know the pain of too much tenderness. To be wounded by your own understanding of love; And to bleed willingly and joyfully. To wake at dawn with a winged heart and give thanks for another day of loving; To rest at the noon hour and meditate love's ecstasy; to return home at eventide with gratitude; And then to sleep with a prayer for the beloved in your heart and a song of praise upon your lips.
 * p. 13

On Marriage

 * You were born together, and together you shall be forever more. You shall be together when the white wings of death scatter your days. Ay, you shall be together even in the silent memory of God. But let there be spaces in your togetherness, And let the winds of the heavens dance between you. Fill each other’s cup, but drink not from one cup. Give one another of your bread, but eat not from the same loaf. Sing and dance together and be joyous, but let each of you be alone, Even as the strings of a lute are alone though they quiver with the duoble music.  Give your hearts, but not into each other’s keeping. For only the hand of Life can contain your hearts. And stand together yet not too near together: For the pillars of the temple stand apart, And the oak tree and the cypress grow not in each other’s shadow.
 * p. 15

On Children
The archer sees the mark upon the path of the infinite, and He bends you with His might that His arrows may go swift and far. Let your bending in the archer's hand be for gladness; For even as he loves the arrow that flies, so He loves also the bow that is stable.
 * Your children are not your children but children is children. They are the sons and daughters of Life's longing for itself. They come through you but not from you, And though they are with you yet they belong not to you. You may give them your love but not your thoughts, For they have their own thoughts. You may house their bodies but not their souls, For their souls dwell in the house of tomorrow, which you cannot visit, not even in your dreams. You may strive to be like them, but seek not to make them like you. For life goes not backward nor tarries with yesterday. You are the bows from which your children as living arrows are sent forth.
 * p. 17

On Giving

 * You give but little when you give of your possessions. It is when you give of yourself that you truly give.
 * P. 19

On Joy and Sorrow

 * The deeper sorrow carves into your being, the more joy you can contain.
 * p. 28

 * Your joy is your sorrow unmasked. And the selfsame well from which your laughter rises was oftentime filled with your tears... When you are joyous, look deep into your heart and you shall find it is only that which has given you sorrow that is giving you joy. When you are sorrowful look again in your heart, and you shall see that in truth you are weeping for that which has been your delight.
 * p. 29

On Houses

 * The lust for comfort, that stealthy thing that enters the house a guest, and then becomes a host, and then a master.
 * p. 32

On Reason and Passion

 * Your soul is oftentimes a battlefield, upon which your reason and your judgment wage war against your passion and your appetite. Would that I could be the peacemaker in your soul, that I might turn the discord and the rivalry of your elements into oneness and melody. But how shall I, unless you yourselves be also the peacemakers, nay, the lovers of all your elements?
 * p. 50

 * For reason, ruling alone, is a force confining; and passion, unattended, is a flame that burns to its own destruction. Therefore let your soul exalt your reason to the height of passion, that it may sing; And let it direct your passion with reason, that your passion may live through its own daily resurrection, and like the phoenix rise above its own ashes.
 * p. 50-51

On Pain

 * Could you keep your heart in wonder at the daily miracles of your life, your pain would not seem less wondrous than your joy; and you would accept the seasons of your heart, even as you have always accepted the seasons that pass over your fields.
 * p. 52

On Self-Knowledge

 * The hidden well-spring of your soul must needs rise and run murmuring to the sea; And the treasure of your infinite depths would be revealed to your eyes. But let there be no scales to weigh your unknown treasure; And seek not the depths of your knowledge with staff or sounding line. For self is a sea boundless and measureless. Say not, "I have found the truth," but rather, "I have found a truth." Say not, "I have found the path of the soul." Say rather, "I have found the soul walking upon my path." For the soul walks upon all paths. The soul walks not upon a line, neither does it grow like a reed. The soul unfolds itself, like a lotus of countless petals.
 * p. 54

On Friendship

 * Your friend is your needs answered. He is your field which you sow with love and reap with thanksgiving. And he is your board and your fireside. For you come to him with your hunger, and you seek him for peace.
 * p. 58

 * And let there be no purpose in friendship save the deepening of the spirit. For love that seeks aught but the disclosure of its own mystery is not love but a net cast forth: and only the unprofitable is caught.
 * p. 59

On Time

 * Of time you would make a stream upon whose bank you would sit and watch its flowing. Yet the timeless in you is aware of life's timelessness, And knows that 'yesterday is but today's memory and tomorrow is today's dream.

 * And that which sings and contemplates in you is still dwelling within the bounds of that first moment which scattered the stars into space. Laser_Towards_Milky_Ways_Centre.jpg

 * And is not time even as love is, undivided and paceless? But if in you thought you must measure time into seasons, let each season encircle all the other seasons, And let today embrace the past with remembrance and the future with longing.

Quotes about The Prophet

 * In truth, The Prophet is a work of such universal appeal that there is little to be gained from speculating on the identity of persons or places represented in it. For Gibran's purpose was a lofty one, and his belief in the 'unity of being', which led him to call for universal fellowship and the unification of the human race, is a message which retains its potency today as do the messages of all great poets. Inspired by his experiences in a country far from the land of his origins, he strove to resolve cultural and human conflict, in the process developing a unique genre of writing, and transcending the barriers of East and West as few have done before or since. He became not only Gibran of Lebanon, but Gibran of America, indeed Gibran the voice of global consciousness: a voice which increasingly demands to be heard in the continuing Age of Anxiety.
 * Dr. Suheil Bashrui, editor of Kahlil Gibran: A Spiritual Treasury, as quoted in "Khalil Gibran (1883-1931) - A Voice of Consciousness" by Manbir Singh Chowdhary in SikhSpectrum.com Quarterly No.16 (May 2004)

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The Prophet

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

title: The Prophet


text:
Henri Poincaré

Jules Henri Poincaré (29 April 1854 – 17 July 1912), generally known as Henri Poincaré, was one of France's greatest mathematicians and theoretical physicists, and a philosopher of science.

Quotes

 * Le savant digne de ce nom, le géomètre surtout, éprouve en face de son œuvre la même impression que l'artiste ; sa jouissance est aussi grande et de même nature.
 * A scientist worthy of the name, above all a mathematician, experiences in his work the same impression as an artist; his pleasure is as great and of the same nature. ...we work not only to obtain the positive results which, according to the profane, constitute our one and only affection, as to experience this esthetic emotion and to convey it to others who are capable of experiencing it.
 * "Notice sur Halphen," Journal de l'École Polytechnique (Paris, 1890), 60ème cahier, p. 143. See also Tobias Dantzig, Henri Poincaré, Critic of Crisis: Reflections on His Universe of Discourse (1954) p. 8

 * C'est même des hypothèses simples qu'il faut le plus se défier, parce que ce sont celles qui ont le plus de chances de passer inaperçues.
 * It is the simple hypotheses of which one must be most wary; because these are the ones that have the most chances of passing unnoticed.
 * Thermodynamique: Leçons professées pendant le premier semestre 1888–1889 (1892), Preface

 * La tâche de l'éducateur est de faire repasser l'esprit de l'enfant par où a passé celui de ses pères, en passant rapidement par certaines étapes mais en n'en supprimant aucune. À ce compte, l'histoire de la science doit être notre guide.
 * The task of the educator is to make the child's spirit pass again where its forefathers have gone, moving rapidly through certain stages but suppressing none of them. In this regard, the history of science must be our guide.
 * "La logique et l'intuition dans la science mathématique et dans l'enseignement" [Logic and intuition in the science of mathematics and in teaching], L'enseignement mathématique (1899)

 * We do not have and cannot have any means of discovering whether or not we are carried along in a uniform motion of translation.
 * L’état actuel et l’avenir de la physique mathematique (1904)

 * Tout le monde y croit cependant, me disait un jour M. Lippmann, car les expérimentateurs s'imaginent que c'est un théorème de mathématiques, et les mathématiciens que c'est un fait expérimental.
 * Everyone is sure of this [that errors are normally distributed], Mr. Lippman told me one day, since the experimentalists believe that it is a mathematical theorem, and the mathematicians that it is an experimentally determined fact.
 * Calcul des probabilités (2nd ed., 1912), p. 171

 * La pensée ne doit jamais se soumettre, ni à un dogme, ni à un parti, ni à une passion, ni à un intérêt, ni à une idée préconçue, ni à quoi que ce soit, si ce n'est aux faits eux-mêmes, parce que, pour elle, se soumettre, ce serait cesser d'être.
 * Thought must never submit, neither to a dogma, nor to a party, nor to a passion, nor to an interest, nor to a preconceived idea, nor to whatever it may be, save to the facts themselves, because, for thought, submission would mean ceasing to be.
 * Speech, University of Brussels (19 November 1909), during the festival for the 75th anniversary of the university's foundation; published in Œuvres de Henri Poincaré (1956), p. 152
 * One evening, contrary to my custom, I drank black coffee and could not sleep. Ideas rose in crowds; I felt them collide until pairs interlocked, so to speak, making a stable combination. But the next morning ... I had only to write out the results, which took but a few hours. ...  Just at this time I left Caen, where I was then living, to go on a geological excursion under the auspices of the school of mines. The changes of travel made me forget my mathematical work. Having reached Coutances, we entered an omnibus to go some place or other. At the moment when I put my foot on the step the idea came to me, without anything in my former thoughts seeming to have paved the way for it, that the transformations I had used to define the Fuchsian functions were identical with those of non-Euclidean geometry. I did not verify the idea; I should not have had time, as, upon taking my seat in the omnibus, I went on with a conversation already commenced, but I felt a perfect certainty. On my return to Caen, for conscience’ sake I verified the result at my leisure. ...  Most striking at first is this appearance of sudden illumination, a manifest sign of long, unconscious prior work. The rôle of this unconscious work in mathematical invention appears to me incontestable ... Often when one works at a hard question, nothing good is accomplished at the first attack. Then one takes a rest, longer or shorter, and sits down anew to the work. During the first half-hour, as before, nothing is found, and then all of a sudden the decisive idea presents itself to the mind.
 * Poincaré, Henri. "Mathematical creation." The Monist (1910): 321-335. Translated from the French by George Bruce Halsted.
 * The ones who are preoccupied by logic are above all; to read their works, one is tempted to believe they have advanced only step by step, after the manner of a Vauban who pushes on his trenches against the place besieged, leaving nothing to chance. The others are guided by intuition and, at the first stroke, make quick but sometimes precarious conquests, like bold cavalrymen of the advance guard.
 * quoted in Jacques Hadamard, An essay on the psychology of invention in the mathematical field (1954), pp. 106.

Science and Hypothesis (1901)

 * La Science et l'Hypothèse, English translation: Science and Hypothesis (1905), Dover abridged edition (1952)

 * Douter de tout ou tout croire, ce sont deux solutions également commodes, qui l'une et l'autre nous dispensent de réfléchir.
 * To doubt everything or to believe everything are two equally convenient solutions; both dispense with the necessity of reflection.
 * Preface, Dover abridged edition (1952), p. xxii

 * The very possibility of the science of mathematics seems an insoluble contradiction. If this science is deductive only in appearance, whence does it derive that perfect rigor no one dreams of doubting? If, on the contrary, all the propositions it enunciates can be deduced one from another by the rules of formal logic, why is not mathematics reduced to an immense tautology? The syllogism can teach us nothing essentially new, and, if everything is to spring from the principle of identity, everything should be capable of being reduced to it. Shall we then admit that the enunciations of all those theorems which fill so many volumes are nothing but devious ways of saying A is A! ...Does the mathematical method proceed from particular to the general, and, if so, how can it be called deductive? ...If we refuse to admit these consequences, it must be conceded that mathematical reasoning has of itself a sort of creative virtue and consequently differs from a syllogism.
 * Ch. I: On the Nature of Mathematical Reasoning (1905) Tr. George Bruce Halstead

 * There is no science apart from the general. It may even be said that the very object of the exact sciences is to spare us these direct verifications.
 * Ch. I. (1905) Tr. George Bruce Halstead

...The essential characteristic of reasoning by recurrence is that it contains, condensed, so to speak, in a single formula, an infinity of syllogisms. ...to arrive at the smallest theorem [we] can not dispense with the aid of reasoning by recurrence, for this is an instrument which enables us to pass from the finite to the infinite. This instrument is always useful, for, allowing us to overleap at a bound as many stages as we wish, it spares us verifications, long, irksome and monotonous, which would quickly become impracticable. But it becomes indispensable as soon as we aim at the general theorem... '''In this domain of arithmetic,.. the mathematical infinite already plays a preponderant rôle, and without it there would be no science, because there would be nothing general.'''
 * This procedure is the demonstration by recurrence. We first establish a theorem for n = 1; then we show that if it is true of n - 1, it is true of n, and thence conclude that it is true for all the whole numbers. ..Here then we have the mathematical reasoning par excellence, and we must examine it more closely.
 * Ch. I. (1905) Tr. George Bruce Halstead

 * We can not... escape the conclusion that the rule of reasoning by recurrence is irreducible to the principle of contradiction. ...Neither can this rule come to us from experience... This rule, inaccessible to analytic demonstration and to experience, is the veritable type of the synthetic a priori judgment. On the other hand, we can not think of seeing in it a convention, as in some of the postulates of geometry. ...it is only the affirmation of the power of the mind which knows itself capable of conceiving the indefinite repetition of the same act when once this act is possible. The mind has a direct intuition of this power, and experience can only give occasion for using it and thereby becoming conscious of it.
 * Ch. I. (1905) Tr. George Bruce Halstead

 * But, one will say, if raw experience can not legitimatize reasoning by recurrence, is it so of experiment aided by induction? We see successively that a theorem is true of the number 1, of the number 2, of the number 3 and so on; the law is evident, we say, and it has the same warranty as every physical law based on observations, whose number is very great but limited. But there is an essential difference. Induction applied to the physical sciences is always uncertain, because it rests on the belief in a general order of the universe, an order outside of us. Mathematical induction, that is, demonstration by recurrence, on the contrary, imposes itself necessarily, because it is only the affirmation of a property of the mind itself.
 * Ch. I. (1905) Tr. George Bruce Halstead

 * Les mathématiciens n'étudient pas des objets, mais des relations entre les objets ; il leur est donc indifférent de remplacer ces objets par d'autres, pourvu que les relations ne changent pas. La matière ne leur importe pas, la forme seule les intéresse.
 * Mathematicians do not study objects, but the relations between objects; to them it is a matter of indifference if these objects are replaced by others, provided that the relations do not change. Matter does not engage their attention, they are interested in form alone.
 * Ch. II: Dover abridged edition (1952), p. 20

...The object of geometry is the study of a particular 'group'; but the general group concept pre-exists... in our minds. It is imposed on us, not as form of our sense, but as form of our understanding. Only, from among all the possible groups, that must be chosen... will be... the standard to which we shall refer natural phenomena. Experience guides us in this choice without forcing it upon us; it tells us not which is the truest geometry, but which is the most convenient. Notice that I have been able to describe the fantastic worlds... imagined without ceasing to employ the language of ordinary geometry.
 * We see that experience plays an indispensable role in the genesis of geometry; but it would be an error thence to conclude that geometry is, even in part, an experimental science. If it were experimental it would be only approximative and provisional. And what rough approximation!
 * Ch. IV: Space and Geometry, Conclusions (1905) Tr. George Bruce Halstead

 * Is the position tenable, that certain phenomena, possible in Euclidean space, would be impossible in non-Euclidean space, so that experience, in establishing these phenomena, would directly contradict the non-Euclidean hypothesis? For my part I think no such question can be put. To my mind it is precisely equivalent to the following, whose absurdity is patent to all eyes: are there lengths expressible in meters and centimeters, but which can not be measured in fathoms, feet, and inches, so that experience, in ascertaining the existence of these lengths, would directly contradict the hypothesis that there are fathoms divided into six feet?
 * Ch. V: Experiment and Geometry (1905) Tr. George Bruce Halstead

These difficulties are inextricable. When we say force is the cause of motion, we talk metaphysics, and this definition, if one were content with it, would be absolutely sterile. For a definition to be of any use, it must teach us to measure force; moreover that suffices; it is not at all necessary that it teach us what force is in itself, nor whether it is the cause or the effect of motion. We must therefore first define the equality of two forces. When shall we say two forces are equal? It is, we are told, when, applied to the same mass, they impress upon it the same acceleration, or when, opposed directly one to the other, they produce equilibrium. This definition is only a sham. A force applied to a body can not be uncoupled to hook it up to another body, as one uncouples a locomotive to attach it to another train. It is therefore impossible to know what acceleration such a force, applied to such a body, would impress upon such an other body, if it were applied to it. It is impossible to know how two forces which are not directly opposed would act, if they were directly opposed. We are... obliged in the definition of the equality of the two forces to bring in the principle of the equality of action and reaction; on this account, this principle must no longer be regarded as an experimental law, but as a definition.
 * What is mass? According to Newton, it is the product of the volume by the density. According to Thomson and Tait, it would be better to say that density is the quotient of the mass by the volume. What is force? It, is replies Lagrange, that which moves or tends to move a body. It is, Kirchhoff will say, the product of the mass by the acceleration. But then, why not say the mass is the quotient of the force by the acceleration?
 * Ch. VI: The Classical Mechanics (1905) Tr. George Bruce Halstead

 * ... les traités de mécanique ne distinguent pas bien nettement ce qui est expérience, ce qui est raisonnement mathématique, ce qui est convention, ce qui est hypothèse.
 * ... treatises on mechanics do not clearly distinguish between what is experiment, what is mathematical reasoning, what is convention, and what is hypothesis.
 * Ch. VI: The Classical Mechanics, Tr. George Bruce Halsted (1913)

 * Le savant doit ordonner ; on fait la science avec des faits comme une maison avec des pierres ; mais une accumulation de faits n'est pas plus une science qu'un tas de pierres n'est une maison.
 * The Scientist must set in order. Science is built up with facts, as a house is with stones. But a collection of facts is no more a science than a heap of stones is a house.
 * Ch. IX: Hypotheses in Physics, Tr. George Bruce Halsted (1913)

...No doubt, if our means of investigation should become more and more penetrating, we should discover the simple under the complex, then the complex under the simple, then again the simple under the complex, and so on, without our being able to foresee what will be the last term. We must stop somewhere, and that science may be possible, '''we must stop when we have found simplicity. This is the only ground on which we can rear the edifice of our generalizations.'''
 * If we study the history of science we see happen two inverse phenomena... Sometimes simplicity hides under complex appearances; sometimes it is the simplicity which is apparent, and which disguises extremely complicated realities.
 * It is often said that experiments should be made without preconceived ideas. That is impossible. Not only would it make every experiment fruitless, but even if we wished to do so, it could not be done. Every man has his own conception of the world, and this he cannot so easily lay aside. We must, for example, use language, and our language is necessarily steeped in preconceived ideas.
 * Ch. IX: Hypotheses in Physics, Tr. George Bruce Halsted (1913)

 * Si donc un phénomène comporte une explication mécanique complète, il en comportera une infinité d’autres qui rendront également bien compte de toutes les particularités révélées par l’expérience.
 * If, then, a phenomenon admits of a complete mechanical explanation, it will admit of an infinity of others, that will render an account equally well of all the particulars revealed by experiment.
 * Ch. XII: Optics and Electricity, as translated by George Bruce Halsted (1913)

The Value of Science (1905)

 * ''Valeur de la Science (1905), as translated by George Bruce Halsted (1907)

As Mach says, these devotees have spared their successors the trouble of thinking.
 * Scientists believe there is a hierarchy of facts and that among them may be made a judicious choice. They are right, since otherwise there would be no science... One need only open the eyes to see that the conquests of industry which have enriched so many practical men would never have seen the light, if these practical men alone had existed and if they had not been preceded by unselfish devotees who died poor, who never thought of utility, and yet had a guide far other than caprice.
 * Author's Essay Prefatory to the Translation: "The Choice of Facts," p.4

 * Le temps et l’espace... Ce n’est pas la nature qui nous les impose, c’est nous qui les imposons à la nature parce que nous les trouvons commodes.
 * Time and Space … It is not nature which imposes them upon us, it is we who impose them upon nature because we find them convenient.
 * Introduction, p. 13

 * Il ne faut pas comparer la marche de la science aux transformations d’une ville, où les édifices vieillis sont impitoyablement jetés à bas pour faire place aux constructions nouvelles, mais à l’évolution continue des types zoologiques qui se développent sans cesse et finissent par devenir méconnaissables aux regards vulgaires, mais où un œil exercé retrouve toujours les traces du travail antérieur des siècles passés. Il ne faut donc pas croire que les théories démodées ont été stériles et vaines.
 * The advance of science is not comparable to the changes of a city, where old edifices are pitilessly torn down to give place to new, but to the continuous evolution of zoologic types which develop ceaselessly and end by becoming unrecognizable to the common sight, but where an expert eye finds always traces of the prior work of the centuries past. One must not think then that the old-fashioned theories have been sterile or vain.
 * Introduction, p. 14

 * Cette harmonie que l’intelligence humaine croit découvrir dans la nature, existe-t-elle en dehors de cette intelligence ? Non, sans doute, une réalité complètement indépendante de l’esprit qui la conçoit, la voit ou la sent, c’est une impossibilité.
 * Does the harmony the human intelligence thinks it discovers in nature exist outside of this intelligence? No, beyond doubt, a reality completely independent of the mind which conceives it, sees or feels it, is an impossibility.
 * Introduction, p. 14

 * What we call objective reality is, in the last analysis, what is common to many thinking beings, and could be common to all; this common part, we shall see, can only be the harmony expressed by mathematical laws. It is this harmony then which is the sole objective reality, the only truth we can attain; and when I add that the universal harmony of the world is the source of all beauty, it will be understood what price we should attach to the slow and difficult progress which little by little enables us to know it better.
 * Introduction, p. 14

 * Pour qu’un ensemble de sensations soit devenu un souvenir susceptible d’être classé dans le temps, il faut qu’il ait cessé d’être actuel, que nous ayons perdu le sens de son infinie complexité, sans quoi il serait resté actuel. Il faut qu’il ait pour ainsi dire cristallisé autour d’un centre d’associations d’idées qui sera comme une sorte d’étiquette. Ce n’est que quand ils auront ainsi perdu toute vie que nous pourrons classer nos souvenirs dans le temps, comme un botaniste range dans son herbier les fleurs desséchées.
 * For an aggregate of sensations to have become a remembrance capable of classification in time, it must have ceased to be actual, we must have lost the sense of its infinite complexity, otherwise it would have remained present. It must, so to speak, have crystallized around a center of associations of ideas which will be a sort of label. It is only when they have lost all life that we can classify our memories in time as a botanist arranges dried flowers in his herbarium.
 * Ch. 2: The Measure of Time

 * Si toutes les parties de l’univers sont solidaires dans une certaine mesure, un phénomène quelconque ne sera pas l’effet d’une cause unique, mais la résultante de causes infiniment nombreuses ; il est, dit-on souvent, la conséquence de l’état de l’univers un instant auparavant.
 * If all the parts of the universe are interchained in a certain measure, any one phenomenon will not be the effect of a single cause, but the resultant of causes infinitely numerous; it is, one often says, the consequence of the state of the universe the moment before.
 * Ch. 2: The Measure of Time

...We ...choose these rules, not because they are true, but because they are the most convenient, and we may recapitulate them as follows: "The simultaneity of two events, or the order of their succession, the equality of two durations, are to be so defined that the enunciation of the natural laws may be as simple as possible. In other words, all these rules, all these definitions, are only the fruit of an unconscious opportunism."
 * We have not a direct intuition of simultaneity, nor of the equality of two durations. If we think we have this intuition, this is an illusion. We replace it by the aid of certain rules which we apply almost always without taking count of them.
 * Ch. 2: The Measure of Time

This is why I do not hesitate to say that mathematics deserve to be cultivated for their own sake, and the theories inapplicable to physics as well as the others. Even if the physical aim and the esthetic aim were not united, we ought not to sacrifice either.
 * Mathematics have a triple aim. They must furnish an instrument for the study of nature. But that is not all: they have a philosophic aim and, I dare maintain, an esthetic aim. They must aid the philosopher to fathom the notions of number, of space, of time. And above all, their adepts find therein delights analogous to those given by painting and music. They admire the delicate harmony of numbers and forms; they marvel when a new discovery opens to them an unexpected perspective; and has not the joy they thus feel the esthetic character, even though the senses take no part therein? Only a privileged few are called to enjoy it fully, it is true, but is not this the case for all the noblest arts?
 * Ch. 5: Analysis and Physics

This... is one reason why the physicist can not do without mathematics; it furnishes him the only language he can speak. And a well-made language is no indifferent thing; ...the analyst, who pursues a purely esthetic aim, helps create, just by that, a language more fit to satisfy the physicist. ...law springs from experiment, but not immediately. Experiment is individual, the law deduced from it is general; experiment is only approximate, the law is precise... In a word, to get the law from experiment, it is necessary to generalize... But how generalize? ...in this choice what shall guide us? It can only be analogy. ...'''What has taught us to know the true profound analogies, those the eyes do not see but reason divines? It is the mathematical spirit, which disdains matter to cling only to pure form.'''
 * All laws are... deduced from experiment; but to enunciate them, a special language is needful... ordinary language is too poor...
 * Ch. 5: Analysis and Physics

 * Comme nous ne pouvons pas donner de l'énergie une définition générale, le principe de la conservation de l'énergie signifie simplement qu'il y a quelque chose qui demeure constant.
 * As we can not give a general definition of energy, the principle of the conservation of energy signifies simply that there is something which remains constant.
 * Ch. 10: Is Science artificial?

 * What is objective must be common to many minds and consequently transmissible from one to the other, and as this transmission can only come about by... discourse... we are even forced to conclude: no discourse no objectivity.
 * Ch. 11: Science and Reality

External objects... are really objects and not fleeting and fugitive appearances, because they are not only groups of sensations, but groups cemented by a constant bond. It is this bond, and this bond alone, which is the object in itself, and this bond is a relation.
 * Now what is science? ...it is before all a classification, a manner of bringing together facts which appearances separate, though they are bound together by some natural and hidden kinship. Science, in other words, is a system of relations. ...it is in relations alone that objectivity must be sought. ...it is relations alone which can be regarded as objective.
 * Ch. 11: Science and Reality

Every act should have an aim. We must suffer, we must work, we must pay for our place at the game, but this is for seeing's sake; or at the very least that others may one day see.
 * It is only through science and art that civilization is of value. Some have wondered at the formula: science for its own sake; an yet it is as good as life for its own sake, if life is only misery; and even as happiness for its own sake, if we do not believe that all pleasures are of the same quality...
 * Ch. 11: Science and Reality

And yet—strange contradiction for those who believe in time—geologic history shows us that life is only a short episode between two eternities of death, and that, even in this episode, conscious thought has lasted and will last only a moment. '''Thought is only a gleam in the midst of a long night. But it is this gleam which is everything'''.
 * All that is not thought is pure nothingness; since we can think only thought and all the words we use to speak of things can express only thoughts, to say there is something other than thought, is therefore an affirmation which can have no meaning.
 * Ch. 11: Science and Reality

Science and Method (1908)

 * Science et méthode (1908), as translated by Francis Maitland (1914)

The page numbers below refer to the Francis Maitland translation text, not the original French text.

 * La sociologie est la science qui possède le plus de méthodes et le moins de résultats.
 * Sociology is the science which has the most methods and the least results.
 * Part I. Ch. 1 : The Selection of Facts, p. 19

 * Le savant n'étudie pas la nature parce que cela est utile; il l'étudie parce qu'il y prend plaisir et il y prend plaisir parce qu'elle est belle. Si la nature n'était pas belle, elle ne vaudrait pas la peine d'être connue, la vie ne vaudrait pas la peine d'être vécue. Je ne parle pas ici, bien entendu, de cette beauté qui frappe les sens, de la beauté des qualités et des apparences; non que j'en fasse fi, loin de là, mais elle n'a rien à faire avec la science; je veux parler de cette beauté plus intime qui vient de l'ordre harmonieux des parties, et qu'une intelligence pure peut saisir.
 * The scientist does not study nature because it is useful to do so. He studies it because he takes pleasure in it, and he takes pleasure in it because it is beautiful. If nature were not beautiful it would not be worth knowing, and life would not be worth living. I am not speaking, of course, of the beauty which strikes the senses, of the beauty of qualities and appearances. I am far from despising this, but it has nothing to do with science. What I mean is that more intimate beauty which comes from the harmonious order of its parts, and which a pure intelligence can grasp.
 * Part I. Ch. 1 : The Selection of Facts, p. 22

 * C’est parce que la simplicité, parce que la grandeur est belle, que nous rechercherons de préférence les faits simples et les faits grandioses, que nous nous complairons tantôt à suivre la course gigantesque des astres, tantôt à scruter avec le microscope cette prodigieuse petitesse qui est aussi une grandeur, tantôt à rechercher dans les temps géologiques les traces d’un passé qui nous attire parce qu’il est lointain.
 * It is because simplicity and vastness are both beautiful that we seek by preference simple facts and vast facts; that we take delight, now in following the giant courses of the stars, now in scrutinizing the microscope that prodigious smallness which is also a vastness, and now in seeking in geological ages the traces of a past that attracts us because of its remoteness.
 * Part I. Ch. 1 : The Selection of Facts, p. 23

 * Je ne sais si je n’ai déjà dit quelque part que la Mathématique est l’art de donner le même nom à des choses différentes.
 * I think I have already said somewhere that mathematics is the art of giving the same name to different things.
 * Part I. Ch. 2 : The Future of Mathematics, p. 31

 * Le but principal de l'enseignement mathématique est de développer certaines facultés de l'esprit et parmi elles l'intuition n'est pas la moins précieuse. C'est par elle que le monde mathématique reste en contact avec le monde réel et quand les mathématiques pures pourraient s'en passer, il faudrait toujours y avoir recours pour combler l'abîme qui sépare le symbole de la réalité.
 * The principal aim of mathematical education is to develop certain faculties of the mind, and among these intuition is not the least precious. It is through it that the mathematical world remains in touch with the real world, and even if pure mathematics could do without it, we should still have to have recourse to it to fill up the gulf that separates the symbol from reality.
 * Part II. Ch. 2 : Mathematical Definitions and Education, p. 128
 * Variant translation: The chief aim of mathematics teaching is to develop certain faculties of the mind, and among these intuition is by no means the least valuable.

 * C'est par la logique qu'on démontre, c'est par l'intuition qu'on invente.
 * It is by logic that we prove, but by intuition that we discover. To know how to criticize is good, to know how to create is better.
 * Part II. Ch. 2 : Mathematical Definitions and Education, p. 129

 * La logique nous apprend que sur tel ou tel chemin nous sommes sûrs de ne pas rencontrer d'obstacle ; elle ne nous dit pas quel est celui qui mène au but. Pour cela il faut voir le but de loin, et la faculté qui nous apprend à voir, c'est l'intuition. Sans elle, le géomètre serait comme un écrivain qui serait ferré sur la grammaire, mais qui n'aurait pas d'idées.
 * Logic teaches us that on such and such a road we are sure of not meeting an obstacle; it does not tell us which is the road that leads to the desired end. For this, it is necessary to see the end from afar, and the faculty which teaches us to see is intuition. Without it, the geometrician would be like a writer well up in grammar but destitute of ideas.
 * Part II. Ch. 2 : Mathematical Definitions and Education, p. 130

 * Toute définition implique un axiome, puisqu'elle affirme l'existence de l'objet défini. La définition ne sera donc justifiée, au point de vue purement logique, que quand on aura démontré qu'elle n'entraîne pas de contradiction, ni dans les termes, ni avec les vérités antérieurement admises.
 * Every definition implies an axiom, since it asserts the existence of the object defined. The definition then will not be justified, from the purely logical point of view, until we have proved that it involves no contradiction either in its terms or with the truths previously admitted.
 * Part II. Ch. 2 : Mathematical Definitions and Education, p. 131

 * Le plus grand hasard est la naissance d’un grand homme. Ce n’est que par hasard que se sont rencontrées deux cellules génitales, de sexe différent, qui contenaient précisément, chacune de son côté, les éléments mystérieux dont la réaction mutuelle devait produire le génie. On tombera d’accord que ces éléments doivent être rares et que leur rencontre est encore plus rare. Qu’il aurait fallu peu de chose pour dévier de sa route le spermatozoïde qui les portait ; il aurait suffi de le dévier d’un dixième de millimètre et Napoléon ne naissait pas et les destinées d’un continent étaient changées. Nul exemple ne peut mieux faire comprendre les véritables caractères du hasard.
 * The greatest chance is the birth of a great man. It is only by chance that two reproductive cells, of different sexes, met, each containing precisely those mysterious elements whose mutual reaction was to produce genius. We will agree that these elements must be rare and that their meeting is even rarer. That it would have taken little to deviate the spermatozoon that carried them from its course; it would have been enough to deviate it by a tenth of a millimeter and Napoleon would not have been born and the destiny of a continent would have been changed. No other example can better explain the true nature of chance.
 * Part I. Ch. 4 : Chance

Quotes about Poincaré

 * Pure mathematicians... more than all others, have been led to realise how cautious we must be of the dictates of intuition and so-called common sense. They know that the fact that we can conceive or imagine a certain thing only in a certain way is no criterion of the correctness of our judgement. Examples in mathematics abound. ...Mathematicians, as a whole, refused to question the soundness of Einstein's theory on the sole plea that it conflicted with our traditional intuitional concepts of space and time, and we need not be surprised to find Poincaré... lending full support to Einstein when the theory was so bitterly assailed in its earlier days.
 * A. D'Abro, The Evolution of Scientific Thought from Newton to Einstein (1927) Forward

 * Poincaré has justly emphasized the fact that we distinguish two kinds of alterations of the bodily object, "changes of state" and "changes of position." The latter, he remarked, are alterations which we can reverse by arbitrary motions of our bodies.
 * Albert Einstein, "Physics and Reality" (1936)

 * One of the enduring legacies of Napoleon was the French system of grandes écoles, the elite schools that train the country's top technocratic and managerial students even today. ... Biographies of French mathematicians often begin with awed accounts of how well they did on the entrance tests, and how they fared on various national exams and competitions. Poincaré was no exception. He obtained the first prize in several national competitions, and was among the highest-ranking applicants to the École Polytechnique and the École Normale Supérieure in Paris, schools especially famous for the quality of their mathematics.
 * Donal O'Shea,

 * With the disappearance of the great French mathematician has disappeared the one man whose thought could carry all other thoughts, the one mind who, through a sort of rediscovery, could penetrate to its very depth all the knowledge which the mind of man can comprehend. And that is why the demise of this man at the peak of his intellectual strength is such a disaster. Discoveries will lag, groping efforts will be drawn out; for, the potent luminous brain will not be there to coordinate disjointed research, or to cast the daring plummet of a new theory into a world of obscure facts suddenly revealed by experience.
 * Paul Painlevé, Eulogy (c. 1912) as quoted by Tobias Dantzig, Henri Poincaré, Critic of Crisis: Reflections on His Universe of Discourse (1954)

 * I rely for my information about mathematical creation on such sources as Poincaré, who speaks of the mind seeming to act only of itself and on itself, selecting, making only the useful combinations, choosing, and finally being struck, as by strong light, with certainty.
 * Muriel Rukeyser The Life of Poetry (1949)

 * Science is a system of relations. Poincaré, saying so, says also, "It is before all a classification, a manner of bringing together facts which appearances separate, though they are bound together by some natural and hidden kinship...."It is in the relations alone that objectivity must be sought; it would be vain to seek it in beings considered as isolated from one another...."External objects...for which the word object was invented, are really objects and not fleeting and fugitive appearances, because they are not only groups of sensations, but groups cemented by a constant bond. It is this bond, and this bond alone, which is the object in itself, and this bond is a relation. "Therefore, when we ask what is the objective value of science, that does not mean: Does science teach us the true nature of things? but it means: Does it teach us the true relations of things?"
 * Muriel Rukeyser The Life of Poetry (1949)

Misattributed

 * Later generations will regard Mengenlehre as a disease from which one has recovered.
 * Later generations will regard set theory as a disease from which one has recovered.
 * Ernst Hölder attributed this to Poincaré in 1924: "Poincaré at the Rome Congress (1908) went so far as to say …", but this is not an accurate summary of his remarks in "The Future of Mathematics". See Jeremy Gray, "Did Poincaré say ‘Set theory is a disease’?", The Mathematical Intelligencer, 13:19-22.
 * Also, probably a variant translation of Hölder's comment, "Point set topology is a disease from which the human race will soon recover."

title: Henri Poincaré


text:
Stephen Leacock

Stephen Butler Leacock Ph.D. FRSC (30 December 1869 – 28 March 1944) was a Canadian writer and economist.

Quotes

 * Lord Ronald said nothing; he flung himself from the room, flung himself upon his horse and rode madly off in all directions.
 * "Gertrude the Governess", Nonsense Novels (1911)

 * Special Correspondence. I learn from a very high authority, whose name I am not at liberty to mention, (speaking to me at a place which I am not allowed to indicate and in a language which I am forbidden to use)—that Austria-Hungary is about to take a diplomatic step of the highest importance. What this step is, I am forbidden to say. But the consequences of it—which unfortunately I am pledged not to disclose—will be such as to effect results which I am not free to enumerate.
 * The Hohenzollerns in America (1919)

 * Presently I shall be introduced as 'this venerable old gentleman' and the axe will fall when they raise me to the degree of 'grand old man'. That means on our continent any one with snow-white hair who has kept out of jail till eighty.
 * On achieving fame in Canada.
 * Three Score and Ten

 * The Lord said "Let there be wheat" and Saskatchewan was born.
 * My Discovery of America (1937)

 * With the thermometer at 30 below zero and the wind behind him, a man walking on Main Street in Winnipeg knows which side of him is which.
 * My Discovery of the West (1937)j

 * It is to be observed that "angling" is the name given to fishing by people who can't fish.
 * When Fellers Go Fishing, The Leacock Roundabout, (1945)

Literary Lapses (1910)

 * I detest life-insurance agents: they always argue that I shall some day die, which is not so.
 * Insurance up to Date

 * It takes a good deal of physical courage to ride a horse. This, however, I have. I get it at about forty cents a flask, and take it as required.
 * Reflections on Riding

 * The rushing of his spirit from its prison-house was as rapid as a hunted cat passing over a garden fence.

 * You know, many a man realizes late in life that if when he was a boy he had known what he knows now, instead of being what he is he might be what he won't; but how few boys stop to think that if they knew what they don't know instead of being what they will be, they wouldn't be?
 * How to Make a Million Dollars

 * You frequently ask, where are the friends of your childhood, and urge that they shall be brought back to you. As far as I am able to learn, those of your friends who are not in jail are still right there in your native village. You point out that they were wont to share your gambols, If so, you are certainly entitled to have theirs now.
 * The Poet Answered

 * A barber is by nature and inclination a sport. He can tell you at what exact hour the ball game is to begin, can foretell its issue without losing a stroke of the razor, and can explain the points of inferiority of all the players, as compared with the better men that he has personally seen elsewhere, with the nicety of a professional.
 * Men Who Have Shaved Me

Sunshine Sketches of a Little Town (1912)

 * Many of my friends are under the impression that I write these humorous nothings in idle moments when the wearied brain is unable to perform the serious labours of the economist. My own experience is exactly the other way. The writing of solid, instructive stuff fortified by facts and figures is easy enough. There is no trouble in writing a scientific treatise on the folk-lore of Central China, or a statistical enquiry into the declining population of Prince Edward Island. But to write something out of one's own mind, worth reading for its own sake, is an arduous contrivance only to be achieved in fortunate moments, few and far between. Personally, I would sooner have written "Alice in Wonderland" than the whole Encyclopaedia Britannica.
 * Preface

 * My parents migrated to Canada in 1876, and I decided to go with them.
 * On leaving England at age seven.

 * Of course, Pupkin would never have thought of considering himself on an intellectual par with Mallory Tompkins. That would have been ridiculous. Mallory Tompkins had read all sorts of things and had half a mind to write a novel himself—either that or a play. All he needed, he said, was to have a chance to get away somewhere by himself and think. Every time he went away to the city Pupkin expected that he might return with the novel all finished; but though he often came back with his eyes red from thinking, the novel as yet remained incomplete.

title: Stephen Leacock