An old fairy tale has it that science began with the rejection of superstition. In fact it was the rejection of rationalism that gave birth to scientific inquiry. Ancient and medieval thinkers believed the world could be understood by applying first principles. Modern science begins when observation and experiment come first, and the results are accepted even when what they show seems to be impossible.

I believe that one can and must hope for a sane society that furthers man's capacity to love his fellow men, to work and create, to develop his reason and his objectivity of a sense of himself that is based on the experience of his productive energy. I believe that one can and must hope for the collective regaining of a mental health that is characterized by the capacity to love and to create...

Socrates reminds us that it is not the same thing, but almost the opposite, to understand religion and to accept it.

We're terrible animals. I think that the Earth's immune system is trying to get rid of us, as well it should.

We will never know if an advertisement or opinion poll has had a real influence on individual or collective wills, but we will never know either what would have happened if there had been no opinion poll or advertisement.

"And the upshot of all this," so I have been told more than once and by more than one person, "will be simply that all you will succeed in doing will be to drive people to the wildest Catholicism." And I have been accused of being a reactionary and even a Jesuit. Be it so! ...I know very well it is madness to seek to turn the waters of the river back to their source, and that it is only the ignorant who seek to find in the past a remedy for their present ills; but I know too that anyone who fights for any ideal whatever, although his ideal may seem to lie in the past, is driving the world on to the future, and that the only reactionaries are those who find themselves at home in the present. Every supposed restoration of the past is a creation of the future, and if the past which it is sought to restore is a dream, something imperfectly known, so much the better.

Husserl has shown that man's prejudices go a great deal deeper than his intellect or his emotions. Consciousness itself is 'prejudiced' - that is to say, intentional.

The very same reason which one man may regard as a motive for taking care to prolong his life may be regarded by another man as a motive for shooting himself.

Why in any case, this glorification of man? How about lions and tigers? They destroy fewer animals or human lives than we do, and they are much more beautiful than we are. How about ants? They manage the Corporate State much better than any Fascist. Would not a world of nightingales and larks and deer be better than our human world of cruelty and injustice and war? The believers in Cosmic Purpose make much of our supposed intelligence, but their writings make one doubt it. If I were granted omnipotence, and millions of years to experiment in, I should not think Man much to boast of as the final result of all my efforts.

Socrates: The shoemaker, for example, uses a square tool, and a circular tool, and other tools for cutting?

If you punish a child for being naughty, and reward him for being good, he will do right merely for the sake of the reward; and when he goes out into the world and finds that goodness is not always rewarded, nor wickedness always punished, he will grow into a man who only thinks about how he may get on in the world, and does right or wrong according as he finds either of advantage to himself.

In the face of the idea that truth might afford the opposite of satisfaction and turn out to be completely shocking to humanity at any given historical moment, ... the fathers of pragmatism made the satisfaction of the subject the criterion of truth. For such a doctrine there is no possibility of rejecting or even criticizing any species of belief that is enjoyed by its adherents.

Judge not, that you be not judged. For with what judgment you judge, you will be judged; and with the measure you use, it will be measured back to you. And why do you look at the speck in your brother's eye, but do not consider the plank in your own eye? Or how can you say to your brother, 'Let me remove the speck from your eye'; and look, a plank is in your own eye? Hypocrite! First remove the plank from your own eye, and then you will see clearly to remove the speck from your brother's eye. 

The way which the superior man pursues, reaches wide and far, and yet is secret. Common men and women, however ignorant, may intermeddle with the knowledge of it; yet in its utmost reaches, there is that which even the sage does not know. Common men and women, however much below the ordinary standard of character, can carry it into practice; yet in its utmost reaches, there is that which even the sage is not able to carry into practice. Great as heaven and earth are, men still find some things in them with which to be dissatisfied. Thus it is that, were the superior man to speak of his way in all its greatness, nothing in the world would be found able to embrace it, and were he to speak of it in its minuteness, nothing in the world would be found able to split it.

Fortunate is he who has acquired a wealth of divine understanding, but wretched the one whose interest lies in shadowy conjectures about divinities.

Two equally steep and bold paths may lead to the same peak. To act as if death did not exist, or to act thinking every minute of death, is perhaps the same thing.

We Shall Naturally look round in vain the macrophysical world for acausal events, for the simple reason that we cannot imagine events that are connected non-causally and are capable of a non-causal explanation. But that does not mean that such events do not exist... The so-called "scientific view of the world" based on this can hardly be anything more than a psychologically biased partial view which misses out all those by no means unimportant aspects that cannot be grasped statistically.

Human vanity cherishes the absurd notion that our species is the final goal of evolution.

No greater mistake can be made than to imagine that what has been written latest is always the more correct; that what is written later on is an improvement on what was written previously; and that every change means progress. Men who think and have correct judgment, and people who treat their subject earnestly, are all exceptions only. Vermin is the rule everywhere in the world: it is always at hand and busily engaged in trying to improve in its own way upon the mature deliberations of the thinkers.

To hope is to contradict the future.

In this life it is necessary that we be on our guard. To begin with we must be constantly aware of the fact that life here below is best described as being a type of continual warfare. This is a fact that Job, that undefeated soldier of vast experience, tells us so plainly. Yet in this matter the great majority of mankind is often deceived, for the world, like some deceitful magician, captivates their minds with seductive blandishments, and as a result most individuals behave as if there had been a cessation of hostilities.

If each us had a different kind of sense perception — if we could only perceive things now as a bird, now as a worm, now as a plant, or if one of us saw a stimulus as red, another as blue, while a third even heard the same stimulus as a sound, then no one would speak of such a regularity of nature, rather, nature would be grasped only as a creation which is subjective in the highest degree. After all, what is a law of nature as such for us? We are not acquainted with it in itself, but only with its effects, which means in its relation to other laws of nature which, in turn, are known to us only as sums of relations. Therefore all these relations always refer again to others and are thoroughly incomprehensible to us in their essence.

Space and time are commonly regarded as the forms of existence of the real world, matter as its substance. A definite portion of matter occupies a definite part of space at a definite moment of time. It is in the composite idea of motion that these three fundamental conceptions enter into intimate relationship.

Many counterrevolutionary books have been written in favor of the Revolution. But Burke has written a revolutionary book against the Revolution.

Of all the means which wisdom acquires to ensure happiness throughout the whole of life, by far the most important is friendship.

To take from one, because it is thought his own industry and that of his fathers has acquired too much, in order to spare to others, who, or whose fathers, have not exercised equal industry and skill, is to violate arbitrarily the first principle of association, the guarantee to everyone the free exercise of his industry and the fruits acquired by it.

My trade and my art is living.

[I]t would be a piece of ingenuousness to accuse the man of to-day of his lack of moral code. The accusation would leave him cold, or rather, would flatter him. Immoralism has become a commonplace, and anybody and everybody boasts of practising it.

The appearance in nineteenth-century psychiatry, jurisprudence, and literature of a whole series of discourses on the species and subspecies of homosexuality, inversion, pederasty, and "psychic hermaphroditism" made possible a strong advance of social controls into this area of "perversity"; but it also made possible the formation of a "reverse" discourse: homosexuality began to speak in its own behalf, to demand that its legitimacy or "naturality" be acknowledged, often in the same vocabulary, using the same categories by which it was medically disqualified.

When you wake up in the morning, tell yourself: The people I deal with today will be meddling, ungrateful, arrogant, dishonest, jealous, and surly. They are like this because they can't tell good from evil. (Hays translation) Say to yourself in the early morning: I shall meet today inquisitive, ungrateful, violent, treacherous, envious, uncharitable men. All these things have come upon them through ignorance of real good and ill.

What seem our worst prayers may really be, in God's eyes, our best. Those, I mean, which are least supported by devotional feeling. For these may come from a deeper level than feeling. God sometimes seems to speak to us most intimately when he catches us, as it were, off our guard.

If just once you were depressed for no reason, you have been so all your life without knowing.

Lifetime is a child at play, moving pieces in a game.

Prize that which is best in the universe; and this is that which useth everything and ordereth everything.

It is the fate of every truth to be an object of ridicule when it is first acclaimed. It was once considered foolish to suppose that black men were really human beings and ought to be treated as such. What was once foolish has now become a recognized truth. Today it is considered as exaggeration to proclaim constant respect for every form of life as being the serious demand of a rational ethic. But the time is coming when people will be amazed that the human race existed so long before it recognized that thoughtless injury to life is incompatible with real ethics. Ethics is in its unqualified form extended responsibility to everything that has life.

All philosophical sects have run aground on the reef of moral and physical ill. It only remains for us to confess that God, having acted for the best, had not been able to do better.

There is a kind of latent omniscience not only in every man but in every particle.

I like well your idea of issuing treasury notes bearing interest, because I am persuaded they would soon be withdrawn from circulation and locked up in vaults & private hoards. It would put it in the power of every man to lend his 100. or 1000 d. tho' not able to go forward on the great scale, and be the most advantageous way of obtaining a loan. The other idea of creating a National bank, I do not concur in, because it seems now decided that Congress has not that power, (altho' I sincerely wish they had it exclusively) and because I think there is already a vast redundancy, rather than a scarcity of paper medium.

For me fiction is a manner of philosophizing ... Philosophy may be only a shadow of the reality it tries to grasp, but the novel is altogether more satisfactory. I am almost tempted to say that no philosopher is qualified to do his job unless he is also a novelist ... I would certainly exchange any of the works of Whitehead or Wittgenstein for the novels they ought to have written.

Shallow men believe in luck, believe in circumstances...Strong men believe in cause and effect.

The only thing the young should be taught is that there is virtually nothing to be hoped for from life. One dreams of a Catalogue of Disappointments which would include all the disillusionments reserved for each and every one of us, to be posted in the schools.

No matter what anyone says or does, my task is to be good.

Everyone must destroy their life. According to the way they do it, they're either triumphants or failures.

A thing is important if anyone think it important.

Wherever literature consoles sorrow, or assuages pain,-wherever it brings gladness to eyes which fail with wakefulness and tears, and ache for the dark house and the long sleep,-there is exhibited, in its noblest form, the immortal influence of Athens.

"Their own strength has betrayed them. They have [...] pulled down Deep Heaven on their heads."

It is questionable whether there does not exist in man an obscure and blind will to make war; an impulse towards change, towards emergence from the familiarities of everyday life and from the stabilities of well-known conditions - something like a will to death as a will to annihilation and self-sacrifice, a vague enthusiasm for the upbuilding of a new world.