Is it always permissible to speak of the extension of a concept, of a class? And if not, how do we recognize the exceptional cases? Can we always infer from the extension of one concept's coinciding with that of a second, that every object which falls under the first concept also falls under the second?

Every one excels in something in which another fails.

One is rarely an impulsive innovator after the age of sixty, but one can still be a very fine orderly and inventive thinker. One rarely procreates children at that age, but one is all the more skilled at educating those who have already been procreated, and education is procreation of another kind.

That power should be exercised over any portion of mankind without any obligation of consulting them, is only tolerable while they are in an infantine, or a semi-barbarous state. In any civilized condition, power ought never to be exempt from the necessity of appealing to the reason, and recommending itself by motives which justify it to the conscience and feelings, of the governed.

The following general definition of an animal: a system of different organic molecules that have combined with one another, under the impulsion of a sensation similar to an obtuse and muffled sense of touch given to them by the creator of matter as a whole, until each one of them has found the most suitable position for it shape and comfort.

That the human mind has a certain order of possible progress, in which some things must precede others, an order which governments and public instructors can modify to some, but not to an unlimited extent: that all questions of political institutions are relative, not absolute, and that different stages of human progress not only will have, but ought to have, different institutions: That government is always either in the hands, or passing into the hands, of whatever is the strongest power in society, and that what this power is, does not depend on institutions, but institutions on it: That any general theory or philosophy of politics supposes a previous theory of human progress, and that this is the same thing with a philosophy of history.

Three days later the little princess was buried, and Prince Andrei went up the steps to where the coffin stood, to give her the farewell kiss. And there in the coffin was the same face, though with closed eyes. "Ah, what have you done to me?" it still seemed to say, and Prince Andrei felt that something gave way in his soul and that he was guilty of a sin he could neither remedy nor forget.

Since he is unable to be the beloved, he will become the lover.

I say that man without the grace of God nonetheless remains the general omnipotence of God who effects, and moves and impels all things in a necessary, infallible course; but the effect of man's being carried along is nothing--that is, avails nothing in God's sight, nor is reckoned to be anything but sin.

All law relations are determined by this principle: each one must restrict his freedom by the possibility of the freedom of the other. ... My freedom is limited by the freedom of the other only on condition that he limits his freedom by the conception of mine. Otherwise he is lawless. Hence, if a law-relation is to result from my cognition of the other, the cognition and the consequent limitation of freedom must have been mutual. All law-relation between persons is, therefore, conditioned by their mutual cognition of each other, and is, at the same time, completely determined thereby.

What man is to be, he must become; and as he is to be a being for himself, must become through himself. Nature completed all her works; only from man did she withdraw her hands, and precisely thereby gave him over to himself. Cultivability, as such, is the character of mankind. The impossibility of subsuming to the human form any other conception than that of his own Ego, is it, which forces every man inwardly to consider every other man as his equal.

Metaphysics has as the proper object of its enquiries three ideas only: God, freedom, and immortality.

I have no knowledge of either Sanscrit or Arabic. But I have done what I could to form a correct estimate of their value. I have read translations of the most celebrated Arabic and Sanscrit works. I have conversed, both here and at home, with men distinguished by their proficiency in the Eastern tongues. I am quite ready to take the oriental learning at the valuation of the orientalists themselves. I have never found one among them who could deny that a single shelf of a good European library was worth the whole native literature of India and Arabia. The intrinsic superiority of the Western literature is indeed fully admitted by those members of the committee who support the oriental plan of education.

Even serious students are misled by the myth of the subject.

This is one of the most intricate problems of religion. For if you look into the traditional arguments (Hadith) about this problem you will find them contradictory; such also being the case with arguments of reason. The contradiction in the arguments of the first kind is found in the Qur'an and the Hadith.

Our dignity is not in what we do, but in what we understand. The whole world is doing things.

But these young scholars who invade our hills, Bold as the engineer who fells the wood, And travelling often in the cut he makes, Love not the flower they pluck, and know it not, And all their botany is Latin names.

As to love our neighbour as we love ourselves is the great law of Christianity, so it is the great precept of nature to love ourselves only as we love our neighbour, or what comes to the same thing, as our neighbour is capable of loving us. 

By a lie a man throws away and, as it were, annihilates his dignity as a man. A man who himself does not believe what he tells another ... has even less worth than if he were a mere thing. ... makes himself a mere deceptive appearance of man, not man himself.

Who, then, can be more ignorant of nature than he who classes this cruel and hurtful vice as belonging to her best and most polished work?

So-called professional mathematicians have, in their reliance on the relative incapacity of the rest of mankind, acquired for themselves a reputation for profundity very similar to the reputation for sanctity possessed by theologians.

My enemy is not the man who wrongs me, but the man who means to wrong me.

The end of the philosophical dialogue lies in itself; it can never serve a purpose outside of itself. Just as a sculptor does not cease to be a work of art even if it lies at the bottom of the sea, so indeed every work of philosophy endures, even if uncomprehended in its own time. One would be grateful if it were merely a matter of incomprehension. Instead, the work is usually refitted and appropriated by various entities-some playing the part of the opponent; others, that of the proponent.

A little of all things, but nothing of everything, after the French manner.

So it is that you come to know what a real God is. ... The God wants my life. He wants to go with me, sit at the table with me, work with me. Above all he wants to be ever-present.

It is easy for us to criticize the prejudices of our grandfathers, from which our fathers freed themselves. It is more difficult to search for prejudices among the beliefs and values that we hold.

Civilizations die from suicide, not by murder.

The move from a structuralist account in which capital is understood to structure social relations in relatively homologous ways to a view of hegemony in which power relations are subject to repetition, convergence, and rearticulation brought the question of temporality into the thinking of structure, and marked a shift from a form of Althusserian theory that takes structural totalities as theoretical objects to one in which the insights into the contingent possibility of structure inaugurate a renewed conception of hegemony as bound up with the contingent sites and strategies of the rearticulation of power.

None shall rule but the humble, And none but Toil shall have.

Genius, in truth, means little more than the faculty of perceiving in an unhabitual way.

Of course, there are those - Sandel, Walzer and Dworkin, for example - who propose "communitarian" ways of thinking, as a further move in the direction which a sophisticated liberalism requires. But none of them is prepared to accept the real price of community: which is sanctity, intolerance, exclusion, and a sense that life's meaning depends upon obedience, and also on vigilance against the enemy.

Enlighten the people generally, and tyranny and oppressions of body and mind will vanish like evil spirits at the dawn of day.

One has to do something new in order to see something new.

It is forbidden to kill; therefore all murderers are punished unless they kill in large numbers and to the sound of trumpets.

A true friend will partake of the wants and sorrows of his friend, as if they were his own; if he be in want, he will relieve him; if he be in prison, he will visit him; if he be sick, he will come to him; nay-situations may occur, in which he would not scruple to die for him. It cannot then be doubted, that friendship is one of the most useful means of procuring a secure, tranquil, and happy life.

Man, in wearing himself out his whole life long by saying: What is that! and what is that called! and what does that mean! is a big spectacle to himself if he wants to open his eyes. All his natural powers tending towards the truth, he never ceases looking for true names; he senses a language prior to that of Babel, and even of Eden.

The line that connects the bombing of civilian populations to the mountain removed by strip mining ... to the tortured prisoner seems to run pretty straight. We're living, it seems, in the culmination of a long warfare - warfare against human beings, other creatures and the Earth itself.

Well, what does "good" mean anyway...? As Wittgenstein suggested, "good," like "game," has a family of meanings. Prominent among them is this one: "meets the criteria or standards of assessment or evaluation."

When the intensity of emotional conviction subsides, a man who is in the habit of reasoning will search for logical grounds in favour of the belief which he finds in himself.

Sphere Music - Some sounds seem to reverberate along the plain, and then settle to earth again like dust; such are Noise, Discord, Jargon. But such only as spring heavenward, and I may catch from steeples and hilltops in their upward course, which are the more refined parts of the former, are the true sphere music - pure, unmixed music - in which no wail mingles.

People will not look forward to posterity, who never look backward to their ancestors.

Even in the games of children there are things to interest the greatest mathematician.

Tolerance - the function of an extinguished ardor - tolerance cannot seduce the young.