Prejudice is an opinion without judgement.

A metaphysics of morals is therefore indispensably necessary, not merely because of a motive to speculation - for investigating the source of the practical basic principles that lie a priori in our reason - but also because morals themselves remain subject to all sorts of corruption as long as we are without that clue and supreme norm by which to appraise them correctly...

When we make ethical judgments, we must go beyond a personal or sectional point of view and take into account the interests of all those affected, unless we have sound ethical grounds for doing otherwise. (...) The essence of the principle of equal consideration of interests is that we give equal weight in our moral deliberations to the like interests of all those affected by our actions. (...) an interest is an interest, whoever's interest it may be.

It is impossible that each of the elements should be infinite. For that is body which has interval on all sides; and that is infinite which has extension without bound.

It is our interest and our task to make the revolution permanent until all the more or less propertied classes have been driven from their ruling positions, until the proletariat has conquered state power and until the association of the proletarians has progressed sufficiently far - not only in one country but in all the leading countries of the world - that competition between the proletarians of these countries ceases and at least the decisive forces of production are concentrated in the hands of the workers. Our concern cannot simply be to modify private property, but to abolish it, not to hush up class antagonisms but to abolish classes, not to improve the existing society but to found a new one.

Envy has been, is, and shall be, the destruction of many. What is there, that Envy hath not defamed, or Malice left undefiled? Truly, no good thing.

I do nothing, granted. But I see the hours pass - which is better than trying to fill them.

The principle of utility judges any action to be right by the tendency it appears to have to augment or diminish the happiness of the party whose interests are in question... if that party be the community the happiness of the community, if a particular individual, the happiness of that individual.

Nothing less will content me, than whole America.

You can tell the man who rings true from the man who rings false, not by his deeds alone, but also by his desires.

The determination of the mot juste, of the right incident in the right place, of exquisiteness of proportion, of the precise tone, hue, and shade that helps unify the whole while it defines a part, is accomplished by emotion. Not every emotion, however, can do this work, but only one informed by material that is grasped and gathered. Emotion is informed and carried forward when it is spent indirectly in search for material and in giving it order, not when it is directly expended.

The true Enlightenment thinker, the true rationalist, never wants to talk anyone into anything. No, he does not even want to convince; all the time he is aware that he may be wrong. Above all, he values the intellectual independence of others too highly to want to convince them in important matters. He would much rather invite contradiction, preferably in the form of rational and disciplined criticism. He seeks not to convince but to arouse - to challenge others to form free opinions.

Let the superior man never fail reverentially to order his own conduct, and let him be respectful to others and observant of propriety: then all within the four seas, all men are brothers. What has the superior man to do with being distressed because he has no brothers?

Government must be a transparent garment which tightly clings to the people's body.

Democratic and aristocratic states are not in their own nature free. Political liberty is to be found only in moderate governments; and even in these it is not always found. It is there only when there is no abuse of power. But constant experience shows us that every man who has power is inclined to abuse it; he goes until he finds limits. Is it not strange, though true, to say that virtue itself has need of limits?.To prevent this abuse, it is necessary that, by the arrangement of things, power shall stop power. A government may be so constituted, as no man shall be compelled to do things to which the law does not oblige him, nor forced to abstain from things which the law permits.

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

Wherever your life ends, it is all there. The utility of living consists not in the length of days, but in the use of time; a man may have lived long, and yet lived but a little. Make use of time while it is present with you. It depends upon your will, and not upon the number of days, to have a sufficient length of life. Is it possible you can imagine never to arrive at the place towards which you are continually going? and yet there is no journey but hath its end. And, if company will make it more pleasant or more easy to you, does not all the world go the self-same way?

The soul of man is divided into three parts, intelligence, reason, and passion. Intelligence and passion are possessed by other animals, but reason by man alone.

Mercy to the guilty is cruelty to the innocent.

An atheist, like a Christian, holds that we can know whether or not there is a God. The Christian holds that we can know there is a God; the atheist, that we can know there is not. The Agnostic suspends judgment, saying that there are not sufficient grounds either for affirmation or for denial. At the same time, an Agnostic may hold that the existence of God, though not impossible, is very improbable; he may even hold it so improbable that it is not worth considering in practice. In that case, he is not far removed from atheism. His attitude may be that which a careful philosopher would have towards the gods of ancient Greece. If I were asked to prove that Zeus and Poseidon and Hera and the rest of the Olympians do not exist, I should be at a loss to find conclusive arguments. An Agnostic may think the Christian God as improbable as the Olympians; in that case, he is, for practical purposes, at one with the atheists.

A Turk thinks, or used to think (for even Turks are wiser now-a-days), that society would be on a sandbank if women were suffered to walk about the streets with their faces uncovered. Taught by these and many similar examples, I look upon this expression of loosening the foundations of society, unless a person tells in unambiguous terms what he means by it, as a mere bugbear to frighten imbeciles with.

The subconscious is ceaselessly murmuring, and it is by listening to these murmurs that one hears the truth.

Torn in this way from its normal connection with contemplation, with being within one's self, pure action permits and produces only a chain of stupidities which we might better call "stupidity unchained." So we see today that an absurd attitude justifies the appearance of an opposing attitude no more reasonable; at least, reasonable enough, and so on indefinitely. Such is the extreme to which political affairs in the West have come!

A young delicate tree, that is being clipped and cut by the gardener in order to give it an artificial form, will never reach the majestic height and the beauty as when allowed to grow in nature and freedom.

And happiness is thought to depend on leisure; for we are busy that we may have leisure, and make war that we may live in peace.

On fact, the whole machinery of our intelligence, our general ideas and laws, fixed and external objects, principles, persons, and gods, are so many symbolic, algebraic expressions. They stand for experience; experience which we are incapable of retaining and surveying in its multitudinous immediacy. We should flounder hopelessly, like the animals, did we not keep ourselves afloat and direct our course by these intellectual devices.

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.

Nine-tenths of the activities of a modern Government are harmful; therefore the worse they are performed, the better.

The only government that I recognize-and it matters not how few are at the head of it, or how small its army - is that power that establishes justice in the land, never that which establishes injustice.

Every one is familiar with the phenomenon of feeling more or less alive on different days. Every one knows on any given day that there are energies slumbering in him which the incitements of that day do not call forth, but which he might display if these were greater. Most of us feel as if we lived habitually with a sort of cloud weighing on us, below our highest notch of clearness in discernment, sureness in reasoning, or firmness in deciding. Compared with what we ought to be, we are only half-awake. Our fires are damped, our drafts are checked. We are making use of only a small part of our possible mental and physical resources.

Lucid intervals and happy pauses.

Good sense is, of all things among men, the most equally distributed; for every one thinks himself so abundantly provided with it, that those even who are the most difficult to satisfy in everything else, do not usually desire a larger measure of this quality than they already possess.

It is the highest service to submit the evil impulse to God through the power of love.

This, I feel, is missing a vital point: that the sceptic is often a totally honest person who, for perfectly good, sound reasons, simply cannot see a case for belief. In fact many -- like Courty Bryan -- admit that they would like to be convinced, but find it impossible.

Few men have been admired by their own households.

The Leaders have ever since gone...to propagate the principles of French Levelling and confusion, by which no house is safe from its Servants, and no Officer from his Soldiers, and no State or constitution from conspiracy and insurrection. I will not enter into the baseness and depravity of the System they adopt; but one thing I will remark, that its great Object is not, (as they pretend to delude worthy people to their Ruin) the destruction of all absolute Monarchies, but totally to root out that thing called an Aristocrate or Noblemen and Gentleman.

The difference between the first- and second-best things in art absolutely seems to escape verbal definition - it is a matter of a hair, a shade, an inward quiver of some kind - yet what miles away in the point of preciousness!

One cannot ignore half of life for the purposes of science, and then claim that the results of science give a full and adequate picture of the meaning of life. All discussions of 'life' which begin with a description of man's place on a speck of matter in space, in an endless evolutionary scale, are bound to be half-measures, because they leave out most of the experiences which are important to use as human beings.

The Greeks possessed a knowledge of human nature we seem hardly able to attain to without passing through the strengthening hibernation of a new barbarism.

Leibniz's theory on the subject as substantia ideans in the sense of a causative agent of decision and acts stands much closer to a materialist interpretation of history than does a philosophy which reduces the thinking subject to the role of subsuming protocol sentences under general propositions and deducing other sentences from them.

Eros and depression are opposites.

Logic has borrowed, perhaps, the rules of geometry, without comprehending their force... it does not thence follow that they have entered into the spirit of geometry, and I should be greatly averse... to placing them on a level with that science that teaches the true method of directing reason.

Cato instigated the magistrates to punish all offenders, saying that they that did not prevent crimes when they might, encouraged them. Of young men, he liked them that blushed better than those who looked pale.

Labour was the first price, the original purchase-money that was paid for all things. It was not by gold or by silver, but by labour, that all the wealth of the world was originally purchased; and its value, to those who possess it, and who want to exchange it for some new productions, is precisely equal to the quantity of labour which it can enable them to purchase or command.

In the philosophy of Mach a world without matter is unthinkable. Matter in Mach's philosophy is not merely required as a test body to display properties of something already there ...it is an essential feature in causing those properties which it able to display, Inertia, for example, would not appear by the insertion of one test body in the world; in some way the presence of other matter is a necessary condition. It will be seen how welcome to such a philosophy is the theory that space and the inertial frame come into being with matter, and grow as it grows.

We have convictions only if we have studied nothing thoroughly.

Truth is the ultimate end of the whole universe.

Don Quixote made himself ridiculous; but did he know the most tragic ridicule of all, the inward ridicule, the ridiculousness of a man's self to himself, in the eyes of his own soul? Imagine Don Quixote's battlefield to be his own soul; imagine him to be fighting in his soul to save the Middle Ages from the Renaissance, to preserve the treasure of his infancy; imagine him an inward Don Quixote, with a Sancho at his side, inward and heroic too - and tell me if you find anything comic in the tragedy.

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.

A book is a mirror: if an ape looks into it an apostle is hardly likely to look out. We have no words for speaking of wisdom to the stupid. He who understands the wise is wise already.