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April 10, 2026
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"I know that most people meet such considerations with a kind of facile optimism; they say "Oh, the men of science are sure to think of some clever invention, and even if they don't it will last my time." They feel like the proverbial Irishman — "Why should I do anything for posterity; it never did anything for me!" But I am concerned in this book with Man, considered as a single creature with a single biography. I cannot be content with a brief moment of riotous living followed by destitution, and however clever the scientists may be, there are some things that they cannot be expected to achieve. When they have used up all the easily available sources of energy that nature has scattered carelessly over the surface of our planet, they will have to resort to more laborious processes, and these will involve a gradual lowering of the standard of living. Modern industrialists are like men who have come for the first time upon fertile virgin land, and can live for a little while in great comfort with only a modicum of labor. It would be irrational to hope that the present heyday of industrialism will not develop far beyond its present level, but sooner or later, owing to the exhaustion of raw material, its capacity to supply human needs will diminish, not suddenly, but gradually. This could, of course, be prevented if men exercised any restraint or foresight in their present frenzied exploitation. Perhaps before it is too late they will learn to do so. But this is a question of politics, and I do not wish, as yet, to consider the political aspect of our problem."
"Modern industry, in fact, is a kind of rape. All the long astronomical and geological ages during which the materials which we find useful have been built up, contribute a moment's blaze, a moment's frivolous exuberance. But when his fireworks are finished, what will become of industrial man? All this, of course, does not appear in practice in the tragic and catastrophic form in which I have been stating it. What we know is that the price of coal goes up, and we do not readily connect this fact with the second law of thermodynamics. If you look up this law in a textbook, you will learn that it states that entropy always increases, and if you are not a physicist you will not be much the wiser. But the law can be stated more simply, and is stated more simply by proverbial wisdom. It states, in fact, that you cannot unscramble eggs. It deals with all the irreversible processes of nature. Some processes are reversible, some are not. If you travel from London to Edinburgh, you can also travel from Edinburgh to London, but if coal is used to make your train go, there is no way by which you can collect the heat which it generates, and turn it back into coal. If you shuffle a pack of cards, you can, if you take enough trouble, unshuffle them again, but if you drop a drop of ink into a glass of water, the ink will gradually spread throughout the water, and there is no way by which you can collect it back again into a drop. All industry depends upon such irreversible processes; it all uses up the earth's capital. Modern industry is, in fact, a spendthrift, and sooner or later must suffer the penalty of spendthrifts."
"All sources of energy upon which industry depends are wasted when they are employed; and industry is expending them at a continually increasing rate. Already coal has been largely replaced by oil, and oil is being used up so fast that East and West alike conceive it necessary to their own prosperity to destroy the industry of the other. And what is true of oil is equally true of other natural resources. Every day, many square miles of forest are turned into newspaper, but there is no known process by which newspaper can be turned into forest. You will say that this need not worry us, since newspapers will be replaced by radio, but radio requires electricity, electricity requires power, and power depends upon raw materials."
"Modern industry depends upon raw materials which are found at, or near, the earth's surface. These raw materials are the product of past geological ages; for the most part they are not being reproduced by any natural process. The elements were built up long ago by a process which we are just beginning to understand, and which when understood may enable clever men to put an end to the human race. The process by which the elements were built up required enormous heat, the sort of heat that exists in the interior of the sun. In a great natural laboratory, nature, starting with hydrogen, arrived by various stages at a number of elements. The number used to be ninety-two but is now indefinite. The elements, at temperatures much lower than that at which they were formed, entered into chemical combinations. At a certain stage the earth was at a temperature peculiarly suitable to the formation of complex chemical combinations, and at last combinations were formed which had the properties that are characteristic of living matter. Living matter has a curious property which I have called "chemical imperialism." In virtue of this property, when it is put into a suitable environment, it transforms a mass of dead matter into a mass of living matter. It is this property which has made organic evolution possible."
"The old humility of the shepherds who felt themselves subject to the influences of Pleiades is no longer appropriate in the scientific world. But there is a danger lest it should be replaced by a species of arrogance towards nature, which can lead to great disasters. Man, however scientific he may be, is not omnipotent. He is hedged in by natural limits. By means of his knowledge and technique he can diminish the narrowness of these limits, but he can never remove them wholly. Some astronomers try to cheer us up in moments of depression by assuring us that one fine day the sun will explode, and in the twinkling of an eye we shall all be turned into gas. I do not know whether this is going to happen, nor when it will happen if it does happen, but I think it is safe to say that if it does it will be a matter outside human control, and that even the best astronomers will be unable to prevent it. This is an extreme example, and one which it is useless to think about, because there is no way in which human behavior can be adapted to it. It does, however, serve one purpose, which is to remind us that we are not gods."
"The good life, as I conceive it, is a happy life. I do not mean that if you are good you will be happy; I mean that if you are happy you will be good."
"Consider MacArthur and his Republican supporters. So limited is his intelligence and his imagination that he is never puzzled for one moment. All we have to do is to go back to the days of the Opium War. After we have killed a sufficient number of millions of Chinese, the survivors among them will perceive our moral superiority and hail MacArthur as a saviour. But let us not be one-sided. Stalin, I should say, is equally simple- minded and equally out of date. He, too, believes that if his armies could occupy Britain and reduce us all to the economic level of Soviet peasants and the political level of convicts, we should hail him as a great deliverer and bless the day when we were freed from the shackles of democracy. One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision."
"I do not wish to seem to end upon a note of cynicism. I do not deny that there are better things than selfishness, and that some people achieve these things. I maintain, however, on the one hand, that there are few occasions upon which large bodies of men, such as politics is concerned with, can rise above selfishness, while, on the other hand, there are a very great many circumstances in which populations will fall below selfishness, if selfishness is interpreted as enlightened self-interest. And among those occasions on which people fall below self-interest are most of the occasions on which they are convinced that they are acting from idealistic motives. Much that passes as idealism is disguised hatred or disguised love of power. When you see large masses of men swayed by what appear to be noble motives, it is as well to look below the surface and ask yourself what it is that makes these motives effective. It is partly because it is so easy to be taken in by a facade of nobility that a psychological inquiry, such as I have been attempting, is worth making. I would say, in conclusion, that if what I have said is right, the main thing needed to make the world happy is intelligence. And this, after all, is an optimistic conclusion, because intelligence is a thing that can be fostered by known methods of education."
"Killing an enemy in a modern war is a very expensive operation... It is obvious that modern war is not good business from a financial point of view. Although we won both the world wars, we should now be much richer if they had not occurred. If men were actuated by self-interest, which they are not – except in the case of a few saints – the whole human race would cooperate. There would be no more wars, no more armies, no more navies, no more atom bombs. There would not be armies of propagandists employed in poisoning the minds of Nation A against Nation B, and reciprocally of Nation B against Nation A. There would not be armies of officials at frontiers to prevent the entry of foreign books and foreign ideas, however excellent in themselves. There would not be customs barriers to ensure the existence of many small enterprises where one big enterprise would be more economic. All this would happen very quickly if men desired their own happiness as ardently as they desired the misery of their neighbors. But, you will tell me, what is the use of these utopian dreams? Moralists will see to it that we do not become wholly selfish, and until we do the millennium will be impossible."
"Politics is concerned with herds rather than with individuals, and the passions which are important in politics are, therefore, those in which the various members of a given herd can feel alike."
"Perhaps the best hope for the future of mankind is that ways will be found of increasing the scope and intensity of sympathy."
"I do not think it can be questioned that sympathy is a genuine motive, and that some people at some times are made somewhat uncomfortable by the sufferings of some other people. It is sympathy that has produced the many humanitarian advances of the last hundred years. We are shocked when we hear stories of the ill-treatment of lunatics, and there are now quite a number of asylums in which they are not ill-treated. Prisoners in Western countries are not supposed to be tortured, and when they are, there is an outcry if the facts are discovered. We do not approve of treating orphans as they are treated in Oliver Twist."
"If the Russians still adhered to the Greek Orthodox religion, if they had instituted parliamentary government, and if they had a completely free press which daily vituperated us, then - provided they still had armed forces as powerful as they have now - we should still hate them if they gave us ground for thinking them hostile."
"The world at present is obsessed by the conflict of rival ideologies, and one of the apparent causes of conflict is the desire for the victory of our own ideology and the defeat of the other. I do not think that the fundamental motive here has much to do with ideologies. I think the ideologies are merely a way of grouping people, and that the passions involved are merely those which always arise between rival groups. Ideologies, in fact, are one of the methods by which herds are created, and the psychology is much the same however the herd may have been generated."
"There are two ways of coping with fear: one is to diminish the external danger, and the other is to cultivate Stoic endurance. The latter can be reinforced, except where immediate action is necessary, by turning our thoughts away from the cause of fear. The conquest of fear is of very great importance. Fear is in itself degrading; it easily becomes an obsession; it produces hate of that which is feared, and it leads headlong to excesses of cruelty. Nothing has so beneficent an effect on human beings as security. If an international system could be established which would remove the fear of war, the improvement in everyday mentality of everyday people would be enormous and very rapid. Fear, at present, overshadows the world. The atom bomb and the bacterial bomb, wielded by the wicked communist or the wicked capitalist as the case may be, make Washington and the Kremlin tremble, and drive men further along the road toward the abyss. If matters are to improve, the first and essential step is to find a way of diminishing fear."
"We love those who hate our enemies, and if we had no enemies there would be very few people whom we should love. All this, however, is only true so long as we are concerned solely with attitudes towards other human beings. You might regard the soil as your enemy because it yields reluctantly a niggardly subsistence. You might regard Mother Nature in general as your enemy, and envisage human life as a struggle to get the better of Mother Nature. If men viewed life in this way, cooperation of the whole human race would become easy. And men could easily be brought to view life in this way if schools, newspapers, and politicians devoted themselves to this end. But schools are out to teach patriotism; newspapers are out to stir up excitement; and politicians are out to get re-elected. None of the three, therefore, can do anything towards saving the human race from reciprocal suicide."
"It is normal to hate what we fear, and it happens frequently, though not always, that we fear what we hate. I think it may be taken as the rule among primitive men, that they both fear and hate whatever is unfamiliar. They have their own herd, originally a very small one. And within one herd, all are friends, unless there is some special ground of enmity. Other herds are potential or actual enemies; a single member of one of them who strays by accident will be killed. An alien herd as a whole will be avoided or fought according to circumstances. It is this primitive mechanism which still controls our instinctive reaction to foreign nations. The completely untravelled person will view all foreigners as the savage regards a member of another herd. But the man who has travelled, or who has studied international politics, will have discovered that, if his herd is to prosper, it must, to some degree, become amalgamated with other herds."
"What is serious about excitement is that so many of its forms are destructive. It is destructive in those who cannot resist excess in alcohol or gambling. It is destructive when it takes the form of mob violence. And above all it is destructive when it leads to war. It is so deep a need that it will find harmful outlets of this kind unless innocent outlets are at hand. There are such innocent outlets at present in sport, and in politics so long as it is kept within constitutional bounds. But these are not sufficient, especially as the kind of politics that is most exciting is also the kind that does most harm. Civilized life has grown altogether too tame, and, if it is to be stable, it must provide harmless outlets for the impulses which our remote ancestors satisfied in hunting."
"A great deal of work is sedentary, and most manual work exercises only a few specialized muscles. When crowds assemble in Trafalgar Square to cheer to the echo an announcement that the government has decided to have them killed, they would not do so if they had all walked twenty-five miles that day. This cure for bellicosity is, however, impracticable, and if the human race is to survive – a thing which is, perhaps, undesirable – other means must be found for securing an innocent outlet for the unused physical energy that produces love of excitement. This is a matter which has been too little considered, both by moralists and by social reformers. The social reformers are of the opinion that they have more serious things to consider. The moralists, on the other hand, are immensely impressed with the seriousness of all the permitted outlets of the love of excitement; the seriousness, however, in their minds, is that of Sin. Dance halls, cinemas, this age of jazz, are all, if we may believe our ears, gateways to Hell, and we should be better employed sitting at home contemplating our sins. I find myself unable to be in entire agreement with the grave men who utter these warnings. The devil has many forms, some designed to deceive the young, some designed to deceive the old and serious. If it is the devil that tempts the young to enjoy themselves, is it not, perhaps, the same personage that persuades the old to condemn their enjoyment? And is not condemnation perhaps merely a form of excitement appropriate to old age? And is it not, perhaps, a drug which – like opium – has to be taken in continually stronger doses to produce the desired effect? Is it not to be feared that, beginning with the wickedness of the cinema, we should be led step by step to condemn the opposite political party, dagoes, wops, Asiatics, and, in short, everybody except the fellow members of our club? And it is from just such condemnations, when widespread, that wars proceed. I have never heard of a war that proceeded from dance halls."
"The politician may change sides so frequently as to find himself always in the majority, but most politicians have a preference for one party to the other, and subordinate their love of power to this preference."
"The pursuit of knowledge is, I think, mainly actuated by love of power. And so are all advances in scientific technique. In politics, also, a reformer may have just as strong a love of power as a despot. It would be a complete mistake to decry love of power altogether as a motive. Whether you will be led by this motive to actions which are useful, or to actions which are pernicious, depends upon the social system, and upon your capacities."
"Power, like vanity, is insatiable. Nothing short of omnipotence could satisfy it completely. And as it is especially the vice of energetic men, the causal efficacy of love of power is out of all proportion to its frequency. It is, indeed, by far the strongest motive in the lives of important men. Love of power is greatly increased by the experience of power, and this applies to petty power as well as to that of potentates."
"One of the troubles about vanity is that it grows with what it feeds on. The more you are talked about, the more you will wish to be talked about. The condemned murderer who is allowed to see the account of his trial in the press is indignant if he finds a newspaper which has reported it inadequately. And the more he finds about himself in other newspapers, the more indignant he will be with the one whose reports are meagre. Politicians and literary men are in the same case... It is scarcely possible to exaggerate the influence of vanity throughout the range of human life, from the child of three to the potentate at whose frown the world trembles. Mankind have even committed the impiety of attributing similar desires to the Deity, whom they imagine avid for continual praise. But great as is the influence of the motives we have been considering, there is one which outweighs them all. I mean the love of power. Love of power is closely akin to vanity, but it is not by any means the same thing. What vanity needs for its satisfaction is glory, and it is easy to have glory without power. The people who enjoy the greatest glory in the United States are film stars, but they can be put in their place by the Committee for Un-American Activities, which enjoys no glory whatever."
"The world would be a happier place than it is if acquisitiveness were always stronger than rivalry. But in fact, a great many men will cheerfully face impoverishment if they can thereby secure complete ruin for their rivals. Hence the present level of taxation. Vanity is a motive of immense potency. Anyone who has much to do with children knows how they are constantly performing some antic, and saying "Look at me." "Look at me" is one of the most fundamental desires of the human heart. It can take innumerable forms, from buffoonery to the pursuit of posthumous fame."
"Acquisitiveness – the wish to possess as much as possible of goods, or the title to goods – is a motive which, I suppose, has its origin in a combination of fear with the desire for necessaries."
"Man differs from other animals in one very important respect, and that is that he has some desires which are, so to speak, infinite, which can never be fully gratified, and which would keep him restless even in Paradise. The boa constrictor, when he has had an adequate meal, goes to sleep, and does not wake until he needs another meal. Human beings, for the most part, are not like this."
"All human activity is prompted by desire. There is a wholly fallacious theory advanced by some earnest moralists to the effect that it is possible to resist desire in the interests of duty and moral principle. I say this is fallacious, not because no man ever acts from a sense of duty, but because duty has no hold on him unless he desires to be dutiful. If you wish to know what men will do, you must know not only, or principally, their material circumstances, but rather the whole system of their desires with their relative strengths."
"Neither a man nor a crowd nor a nation can be trusted to act humanely or to think sanely under the influence of a great fear."
"Man is a credulous animal, and must believe something; in the absence of good grounds for belief, he will be satisfied with bad ones."
"Man is a rational animal – so at least I have been told. Throughout a long life, I have looked diligently for evidence in favor of this statement, but so far I have not had the good fortune to come across it, though I have searched in many countries spread over three continents."
"All movements go too far."
"A man might say, with enough truth to justify a joke: "Science is what we know, and philosophy is what we don't know." But it should be added that philosophical speculation as to what we do not yet know has shown itself a valuable preliminary to exact scientific knowledge."
"The essence of the Liberal outlook lies not in what opinions are held, but in how they are held: instead of being held dogmatically, they are held tentatively, and with a consciousness that new evidence may at any moment lead to their abandonment."
"Change is one thing, progress is another."
"When I was a boy, I had a clock with a pendulum that could be lifted off. I found that the clock went very much faster without the pendulum. If the main purpose of a clock is to go, the clock was the better for losing its pendulum. True, it could no longer tell the time, but that did not matter if one could teach oneself to be indifferent to the passage of time. The linguistic philosophy which cares only about language and not about the world, is like the boy who preferred the clock without the pendulum because, although it no longer told the time, it went more easily than before and at a more exhilarating pace."
"Fanaticism is the danger of the world, and always has been, and has done untold harm. I might almost say that I was fanatical against fanaticism."
"Since Adam and Eve ate the apple, man has never refrained from any folly of which he was capable. The End."
"I should like to say two things. One intellectual and one moral. The intellectual thing I should want to say to them is this: "When you are studying any matter, or considering any philosophy, ask yourself only: What are the facts, and what is the truth that the facts bear out. Never let yourself be diverted, either by what you wish to believe, or by what you think would have beneficent social effects if it were believed; but look only and solely at what are the facts." That is the intellectual thing that I should wish to say. The moral thing I should wish to say to them is very simple; I should say: "Love is wise – Hatred is foolish." In this world, which is getting more and more closely interconnected, we have to learn to tolerate each other. We have to learn to put up with the fact, that some people say things we don't like. We can only live together in that way. But if we are to live together, and not die together, we must learn a kind of charity and a kind of tolerance which is absolutely vital, to the continuation of human life on this planet."
"When I was 4 years old ... I dreamt that I'd been eaten by a wolf, and to my great surprise I was in the wolf's stomach and not in heaven."
"There is no need to worry about mere size. We do not necessarily respect a fat man more than a thin man. Sir Isaac Newton was very much smaller than a hippopotamus, but we do not on that account value him less."
"Thank you for your letter and for the enclosure which I return herewith. I have been wondering whether there is any means of preventing the confusion between you and me, and I half-thought that we might write a joint letter to The Times in the following terms: Sir, To prevent the continuation of confusions which frequently occur, we beg to state that neither of us is the other. Do you think this would be a good plan?"
"I have always thought respectable people scoundrels, and I look anxiously at my face every morning for signs of my becoming a scoundrel."
"I observe that a very large portion of the human race does not believe in God and suffers no visible punishment in consequence. And if there were a God, I think it very unlikely that he would have such an uneasy vanity as to be offended by those who doubt his existence."
"What is new in our time is the increased power of the authorities to enforce their prejudices."
"If the Communists conquered the world, it would be very unpleasant for a while, but not forever. But if the human race is wiped out, that is the end."
"The secret of happiness is to face the fact that the world is horrible, horrible, horrible."
"Choose your parents wisely."
"When I found myself regarded as respectable, I began to wonder what sins I had committed. I must be very wicked, I thought. I began to engage in the most uncomfortable introspection."
"All the time that he can spare from the adornment of his person, he devotes to the neglect of his duties."
"What modern apologists call 'true' Christianity is something depending upon a very selective process. It ignores much that is to be found in the Gospels: for example, the parable of the sheep and the goats, and the doctrine that the wicked will suffer eternal torment in Hell fire. It picks out certain parts of the Sermon on the Mount, though even these it often rejects in practice. It leaves the doctrine of non-resistance, for example, to be practised only by non-Christians such as Gandhi. The precepts that it particularly favours are held to embody such a lofty morality that they must have had a divine origin. And yet ... these precepts were uttered by Jews before the time of Christ."