Aristotle's view that philosophy begins with wonder, not as in our day with doubt, is a positive point of departure for philosophy. Indeed, the world will no doubt learn that it does not do to begin with the negative, and the reason for success up to the present is that philosophers have never quite surrendered to the negative and thus have never earnestly done what they have said. They merely flirt with doubt.

There cannot any one moral Rule be propos'd, whereof a Man may not justly demand a Reason.

The true function of logic ... as applied to matters of experience ... is analytic rather than constructive; taken a priori, it shows the possibility of hitherto unsuspected alternatives more often than the impossibility of alternatives which seemed prima facie possible. Thus, while it liberates imagination as to what the world may be, it refuses to legislate as to what the world is.

The victory of vivisection marks a great advance in the triumph of ruthless, non-moral utilitarianism over the old world of ethical law; a triumph in which we, as well as animals, are already the victims, and of which Dachau and Hiroshima mark the more recent achievements.

The hand that rounded Peter's dome, And groined the aisles of Christian Rome, Wrought in a sad sincerity, Himself from God he could not free; He builded better than he knew, The conscious stone to beauty grew.

"I will show," said Agesilaus, "that it is not the places that grace men, but men the places."

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.

For if a thing is not diminished by being shared with others, it is not rightly owned if it is only owned and not shared.

Man's chief difference from the brutes lies in the exuberant excess of his subjective propensities - his preeminence over them simply and solely in the number and in the fantastic and unnecessary character of his wants, physical, moral, aesthetic, and intellectual. Had his whole life not been a quest for the superfluous, he would never have established himself as inexpugnably as he has done in the necessary.

"Everything is both a trap and a display; the secret reality of the object is what the Other makes of it."

The world is rejuvenated, but as Heine so wittily remarked, it was rejuvenated by romanticism to such a degree that it became a baby again.

[A]ll things as subsist from nature appear to contain in themselves a principle of motion and permanency; some according to place, others according to increase and diminuation; and others according to change in quality. Book II, Ch. I, p. 88.

In action, in desire, we must submit perpetually to the tyranny of outside forces; but in thought, in aspiration, we are free, free from our fellowmen, free from the petty planet on which our bodies impotently crawl, free even, while we live, from the tyranny of death.

A robot must obey the orders given it by human beings except where such orders would conflict with the First Law.

I would take to be quite a fool any man who would make a book full of laws and statutes for an apple tree telling it how to bear apples and not thorns, when the tree is able by its own nature to do this better than the man with all his books can describe and demand.

So many men are deprived of grace. How can one live without grace? One has to try it and do what Christianity never did: be concerned with the damned.

He was going into a theatre, meeting face to face those who were coming out, and being asked why, "This," he said, "is what I practise doing all my life."

Navigation brought man face to face with the uncertainty of destiny, where each is left to himself and every departure might always be the last. The madman on his crazy boat sets sail for the other world, and it is from the other world that he comes when he disembarks. This enforced navigation is both rigorous division and absolute Passage, serving to underline in real and imaginary terms the liminal situation of the mad in medieval society. It was a highly symbolic role, made clear by the mental geography involved, where the madman was confined at the gates of the cities. His exclusion was his confinement, and if he had no prison other than the threshold itself he was still detained at this place of passage. In a highly symbolic position he is placed on the inside of the outside, or vice versa. A posture that is still his today, if we admit that what was once the visible fortress of social order is now the castle of our own consciousness.

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.

That books do not take the place of experience, and that learning is no substitute for genius, are two kindred phenomena; their common ground is that the abstract can never take the place of the perceptive.

Act as if what you do makes a difference. It does.

Lincoln's place in the history of the United States and of mankind will, nevertheless, be next to that of Washington!

Science doesn't purvey absolute truth. Science is a mechanism. It's a way of trying to improve your knowledge of nature. It's a system for testing your thoughts against the universe and seeing whether they match. And this works, not just for the ordinary aspects of science, but for all of life. I should think people would want to know that what they know is truly what the universe is like, or at least as close as they can get to it.

The hidden significance of these fables which is sometimes thought to have been detected, the ethics running parallel to the poetry and history, are not so remarkable as the readiness with which they may be made to express a variety of truths. As if they were the skeletons of still older and more universal truths than any whose flesh and blood they are for the time made to wear. It is like striving to make the sun, or the wind, or the sea symbols to signify exclusively the particular thoughts of our day. But what signifies it? In the mythus a superhuman intelligence uses the unconscious thoughts and dreams of men as its hieroglyphics to address men unborn. In the history of the human mind, these glowing and ruddy fables precede the noonday thoughts of men, as Aurora the sun's rays. The matutine intellect of the poet, keeping in advance of the glare of philosophy, always dwells in this auroral atmosphere.

I don't deserve a share in governing a hen-roost, much less a nation. Nor do most people - all the people who believe advertisements, and think in catchwords and spread rumors. The real reason for democracy is just the reverse. Mankind is so fallen that no man can be trusted with unchecked power over his fellows. Aristotle said that some people were only fit to be slaves. I do not contradict him. But I reject slavery because I see no men fit to be masters.

The even larger difference between rich and poor makes the latter even worse off, and this violates the principle of mutual advantage.

That of beaver skins, of beaver wool, and of gum Senega, has been subjected to higher duties; Great Britain, by the conquest of Canada and Senegal, having got almost the monopoly of those commodities.

These preachers of beauty, which light the world with their admonishing smile.

Instead of deciding once in three or six years which member of the ruling class was to misrepresent the people in Parliament, universal suffrage was to serve the people, constituted in Communes, as individual suffrage serves every other employer in the search for the workmen and managers in his business.

Eating and reading are two pleasures that combine admirably.

One common false conclusion is that because someone is truthful and upright towards us he is spreading the truth. Thus the child believes his parents' judgements, the Christian believes the claims of the church's founders. Likewise, people do not want to admit that all those things which men defended with the sacrifice of their lives and happiness in earlier centuries were nothing but errors.

The first characteristic of the human species is man's ability, as a rational being, to establish character for himself, as well as for the society into which nature has placed him. This ability, however, presupposes an already favorable natural predisposition and an inclination to the good in man, because the evil is really without character (since it is at odds with itself, and since it does not tolerate any lasting principle within itself)

Beings who are so uniquely constituted must necessarily express themselves in other ways than ordinary men. It is impossible that with souls so differently modified, they should not carry over into the expression of their feelings and ideas the stamp of those modifications.

There is a divergence between private and social accounting that the market fails to register. One essential task of law and government is to institute the necessary conditions.

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.

There are two sentences inscribed upon the Delphic oracle, hugely accommodated to the usages of man's life: "Know thyself," and "Nothing too much;" and upon these all other precepts depend.

Either the USSR was not the country of socialism, in which case socialism didn't exist anywhere and doubtless, wasn't possible: or else, socialism was that, this abominable monster, this police state, the power of beasts of prey.

The scientific attitude of mind involves a sweeping away of all other desires in the interests of the desire to know-it involves suppression of hopes and fears, loves and hates, and the whole subjective emotional life, until we become subdued to the material, able to see it frankly, without preconceptions, without bias, without any wish except to see it as it is, and without any belief that what it is must be determined by some relation, positive or negative, to what we should like it to be, or to what we can easily imagine it to be.

Civil government, so far as it is instituted for the security of property, is in reality instituted for the defence of the rich against the poor, or of those who have some property against those who have none at all.

I have always - at least, ever since I can remember - had a kind of longing for death. Psyche

The two ways of contemplation are not unlike the two ways of action commonly spoken of by the ancients: the one plain and smooth in the beginning, and in the end impassable; the other rough and troublesome in the entrance, but after a while fair and even. So it is in contemplation: If a man will begin with certainties, he shall end in doubts; but if he will be content to begin with doubts he shall end in certainties.

Knowledge can in part be set aside, and one can then go further in order to collect new; the natural scientist can set aside insects and flowers and then go further, but if the existing person sets aside the decision in existence, it is eo ipso lost, and he is changed.

Speciesism-the word is not an attractive one, but I can think of no better term-is a prejudice or attitude of bias in favor of the interests of members of one's own species and against those of members of other species.

"It is necessary to be given the prop that all elementary props are given." This is not necessary because it is even impossible. There is no such prop! That all elementary props are given is SHOWN by there being none having an elementary sense which is not given.

When some one reminded him that the people of Sinope had sentenced him to exile, he said, "And I sentenced them to stay at home."

New opinions are always suspected, and usually opposed, without any other reason but because they are not already common.

We are delighted to find a person who values us as we value ourselves, and distinguishes us from the rest of mankind, with an attention not unlike that with which we distinguish ourselves.

Truth will sooner come out from error than from confusion.

It is not only when it takes the form of physical addiction that sex is evil. It is also evil when it manifests itself as a way of satisfying the lust for power or the climber's craving for position and social distinction.

Perhaps the best hope for the future of mankind is that ways will be found of increasing the scope and intensity of sympathy.