The successful revolutionary is a statesman, the unsuccessful one a criminal.

The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes. Therefore in medicine we ought to know the causes of sickness and health. And because health and sickness and their causes are sometimes manifest, and sometimes hidden and not to be comprehended except by the study of symptoms, we must also study the symptoms of health and disease. Now it is established in the sciences that no knowledge is acquired save through the study of its causes and beginnings, if it has had causes and beginnings; nor completed except by knowledge of its accidents and accompanying essentials. Of these causes there are four kinds: material, efficient, formal, and final.

One principle, that I believe is wanting in you, and all our too fervent and impetuous reformers, is the thought, that almost every institution or form of society is good in its place, and in the period of time to which it belongs. How many beautiful and admirable effects grew out of Popery and the monastic institutions, in the period, when they were in their genuine health and vigour! To them we owe almost all our logic and our literature. What excellent effects do we reap, even at this day, from the feudal system and from chivalry! In this point of view, nothing can, perhaps, be more worthy of our applause than the English constitution.

A great myth is relevant as long as the predicament of humanity lasts; as long as humanity lasts. It will always work, on those who can receive it, the same catharsis.

The fault with Hegel lies much deeper than in his glorification of the Prussian monarchy. He is guilty not so much of being servile as of betraying his highest philosophical ideas. His political doctrine surrenders society to nature, freedom to necessity, reason to caprice. And in so doing, it mirrors the destiny of the social order that falls, while in pursuit of its freedom, into a state of nature far below reason.

The dreamer must contaminate the others by his dream, he must make them fall into it.

Your suffering like your fate is without motive. To suffer, truly to suffer, is to accept the invasion of ills without the excuse of causality, as a favor of demented nature, as a negative miracle...

You have already grasped that Sisyphus is the absurd hero. He is, as much through his passions as through his torture. His scorn of the gods, his hatred of death, and his passion for life won him that unspeakable penalty in which the whole being is exerted toward accomplishing nothing. This is the price that must be paid for the passions of this earth. Nothing is told us about Sisyphus in the underworld. Myths are made for the imagination to breathe life into them.

Praise be to God with all due praise, and a prayer for Muhammad His chosen servant and apostle. The purpose of this treatise is to examine, from the standpoint of the study of the Law, whether the study of philosophy and logic is allowed by the Law, or prohibited, or commanded either by way of recommendation or as obligatory.

Most men have nothing in their heads but their physical needs; put them on a desert island with nothing to occupy their minds and they would go insane. They lack real motive. The curse of civilization is boredom.

The effect of music is so very much more powerful and penetrating than is that of the other arts, for these others speak only of the shadow, but music of the essence.

Slavery is disheartening; but Nature is not so helpless but it can rid itself of every last wrong. But the spasms of nature are centuries and ages and will tax the faith of short-lived men. Slowly, slowly the Avenger comes, but comes surely. The proverbs of the nations affirm these delays, but affirm the arrival. They say, "God may consent, but not forever." The delay of the Divine Justice - this was the meaning and soul of the Greek Tragedy, - this was the soul of their religion.

We vainly accuse the fury of guns, and the new inventions of death; it is in the power of every hand to destroy us, and we are beholden unto every one we meet he doth not kill us.

But what is lawful for all extends across wide-ruling aether and, without cease, through endless sunshine.

There may be a rationalist who has never wavered in his conviction of the mortality of the soul, and there may be a vitalist who has never wavered in his faith in immortality; but at the most this would prove that just as there are natural monstrosities, so there are those who are stupid as regards heart and feeling, however great their intelligence, and those who are stupid intellectually, however great their virtue. But, in normal cases, I cannot believe those who assure me that never, not in a fleeting moment, not in the hours of direst loneliness and grief, has this murmur of uncertainty breathed upon their consciousness.

Such then is the human condition, that to wish greatness for one's country is to wish harm to one's neighbors.

In [Aristotle's] formal logic, thought is organized in a manner very different from that of the Platonic dialogue. In this formal logic, thought is indifferent toward its objects. Whether they are mental or physical, whether they pertain to society or to nature, they become subject to the same general laws of organization, calculation, and conclusion - but they do so as fungible signs or symbols, in abstraction from their particular "substance." This general quality (quantitative quality) is the precondition of law and order - in logic as well as in society - the price of universal control.

Men and boys are learning all kinds of trades but how to make men of themselves. They learn to make houses; but they are not so well housed, they are not so contented in their houses, as the woodchucks in their holes. What is the use of a house if you haven't got a tolerable planet to put it on? - If you cannot tolerate the planet that it is on? Grade the ground first. If a man believes and expects great things of himself, it makes no odds where you put him, or what you show him ... he will be surrounded by grandeur. He is in the condition of a healthy and hungry man, who says to himself, - How sweet this crust is!

He once begged alms of a statue, and, when asked why he did so, replied, "To get practice in being refused."

He who is not sure of his memory, should not undertake the trade of lying. 

The collective name for the ripe fruits of religion in a character is Saintliness. The saintly character is the character for which spiritual emotions are the habitual centre of the personal energy; and there is a certain composite photograph of universal saintliness, the same in all religions, of which the features can easily be traced.

The Hebrews took for their idol, not something made of metal or wood, but a race, a nation, something just as earthly. Their religion is essentially inseparable from such idolatry, because of the notion of the "chosen people".

There is no body but eats and drinks. But they are few who can distinguish flavors.

Each time I fail to think about death, I have the impression of cheating, of deceiving someone in me.

What is asked of a man that he may be able to pray for his enemies? To pray for one's enemies is the hardest thing of all. That is why it exasperates us so much in our present day situation.

Eternity, not as a static "now," nor as a sequence of "nows" rolling off into the infinite, but as the "now" that bends back into itself. ... Thinking the most difficult thought of philosophy means thinking being as time.

What am I, other than a chance in the infinite probabilities of not having been!

So when the universe was quickened with soul, God was well pleased; and he bethought him to make it yet more like its type. And whereas the type is eternal and nought that is created can be eternal, he devised for it a moving image of abiding eternity, which we call time. And he made days and months and years, which are portions of time; and past and future are forms of time, though we wrongly attribute them also to eternity. For of eternal Being we ought not to say 'it was', 'it shall be', but 'it is' alone: and in like manner we are wrong in saying 'it is' of sensible things which become and perish; for these are ever fleeting and changing, having their existence in time.

The Fathers of the Church can well afford to preach the gospel of Christ. It contains nothing dangerous to the regime of authority and wealth; it stands for self-denial and self-abnegation, for penance and regret, and is absolutely inert in the face of every indignity, every outrage imposed upon mankind.

If the Superior Man is not serious, then he will not inspire awe in others. If he is not learned, then he will not be on firm ground. He takes loyalty and good faith to be of primary importance, and has no friends who are not of equal (moral) caliber. When he makes a mistake, he doesn't hesitate to correct it.

Knowledge is the conformity of the object and the intellect.

In fact, the real problem with the thesis of A Genealogy of Morals is that the noble and the aristocrat are just as likely to be stupid as the plebeian. I had noted in my teens that major writers are usually those who have had to struggle against the odds -- to "pull their cart out of the mud," as I put it -- while writers who have had an easy start in life are usually second rate -- or at least, not quite first-rate. Dickens, Balzac, Dostoevsky, Shaw, H. G. Wells, are examples of the first kind; in the twentieth century, John Galsworthy, Graham Greene, Evelyn Waugh, and Samuel Beckett are examples of the second kind. They are far from being mediocre writers; yet they tend to be tinged with a certain pessimism that arises from never having achieved a certain resistance against problems.

Respectable scientists like de Broglie himself accept wave mechanics because it confers coherence and unity upon the experimental findings of contemporary science, and in spite of the astonishing changes it implies in connection with ideas of causality, time, and space, but it is because of these changes that it wins favor with the public. The great popular success of Einstein was the same thing. The public drinks in and swallows eagerly everything that tends to dispossess the intelligence in favor of some technique; it can hardly wait to abdicate from intelligence and reason and from everything that makes man responsible for his destiny.

In the inescapable flux, there is something that abides; in the overwhelming permanence, there is an element that escapes into flux. Permanence can be snatched only out of flux; and the passing moment can find its adequate intensity only by its submission to permanence.

I make no secret about being Jewish ... I just think it's more important to be human and to have a human heritage; and I think it is wrong for anyone to feel that there is anything special about any one heritage of whatever kind. It is delightful to have the human heritage exist in a thousand varieties, for it makes for greater interest, but as soon as one variety is thought to be more important than another, the groundwork is laid for destroying them all.

The poet is, etymologically, the maker. Like all makers, he requires a stock of raw materials - in his case, experience. Now experience is not a matter of having actually swum the Hellespont, or danced with the dervishes, or slept in a doss-house. It is a matter of sensibility and intuition, of seeing and hearing the significant things, of paying attention at the right moments, of understanding and co-ordinating. Experience is not what happens to a man; it is what a man does with what happens to him. It is a gift for dealing with the accidents of existence, not the accidents themselves. By a happy dispensation of nature, the poet generally possesses the gift of experience in conjunction with that of expression. What he says so well is therefore intrinsically of value.

Can a mortal ask questions which God finds unanswerable? Quite easily, I should think. All nonsense questions are unanswerable. How many hours are there in a mile? Is yellow square or round? Probably half the questions we ask - half our great theological and metaphysical problems - are like that.

Philosophy unravels the knots in our thinking; hence its results must be simple, but its activity is as complicated as the knots that it unravels.

When you close your doors, and make darkness within, remember never to say that you are alone, for you are not alone; nay, God is within, and your genius is within. And what need have they of light to see what you are doing?

For already, sometime, I have been a boy and a girl, a shrub, a bird, and a silent fish in the sea.

By incestuous symbiosis is meant the tendency to stay tied to the mother and to her equivalents - blood, family, tribe - to fly from the unbearable weight of responsibility, of freedom, of awareness, and to be protected and loved in a state of certainty dependence that the individual pays for with the ceasing of his own human development.

The rich in all societies may be thrown into two classes. The first is of those who are powerful as well as rich, and conduct the operations of the vast political machine. The other is of those who employ their riches wholly in the acquisition of pleasure. As to the first sort, their continual care and anxiety, their toilsome days and sleepless nights, are next to proverbial. These circumstances are sufficient almost to level their condition to that of the unhappy majority; but there are other circumstances which place them in a far lower condition. Not only their understandings labour continually, which is the severest labour, but their hearts are torn by the worst, most troublesome, and insatiable of all passions, by avarice, by ambition, by fear and jealousy. No part of the mind has rest. Power gradually extirpates from the mind every humane and gentle virtue. Pity, benevolence, friendship, are things almost unknown in high stations.

He who says he hates every kind of flattery, and says it in earnest, certainly does not yet know every kind of flattery.

Every intellectual effort sets us apart from the commonplace, and leads us by hidden and difficult paths to secluded spots where we find ourselves amid unaccustomed thoughts.

At the end of Being and Nothingness, ... Being in-itself and Being for-itself were of Being; and this totality of beings, in which they were effected, itself was linked up to itself, relating and appearing to itself, by means of the essential project of human-reality. What was named in this way, in an allegedly neutral and undetermined way, was nothing other than the metaphysical unity of man and God, the relation of man to God, the project of becoming God as the project constituting human-reality. Atheism changes nothing in this fundamental structure.

Each the herald is who wrote His rank, and quartered his own coat. There is no king nor sovereign state That can fix a hero's rate.

We're tired of trees. We should stop believing in trees, roots, and radicles. They've made us suffer too much. All of arborescent culture is founded on them, from biology to linguistics. Nothing is beautiful or loving or political aside from underground stems and aerial root, adventitious growths and rhizomes.

It would be better to have no laws at all than to have them in such profusion as we do.