It is the mark of an educated man to look for precision in each class of things just so far as the nature of the subject admits; it is evidently equally foolish to accept probable reasoning from a mathematician and to demand from a rhetorician scientific proofs.

We should never take pleasure in causing pain to others, even to those who have wronged us, but rather strive to do good to all.

Be of good courage, and if you are discouraged, still take courage over against the various forms of nature. He who has ears to hear, let him hear.

I consider as lovers of books not those who keep their books hidden in their store-chests and never handle them, but those who, by nightly as well as daily use thumb them, batter them, wear them out, who fill out all the margins with annotations of many kinds, and who prefer the marks of a fault they have erased to a neat copy full of faults.

But the greatest thing by far is to have a command of metaphor. This alone cannot be imparted by another; it is the mark of genius, for to make good metaphors implies an eye for resemblances.

Plato has preserved in the Theaetetus - the story is that Thales, while occupied in studying the heavens above and looking up, fell into a well. A good-looking and whimsical maid from Thrace laughed at him and told him that while he might passionately want to know all things in the universe, the things in front of his very nose and feet were unseen by him." Plato added: "This jest also fits all those who become involved in Philosophy." Therefore, the question, What is a thing?" must always be rated as one that causes housemaids to laugh.

A habit of basing convictions upon evidence, and of giving to them only that degree of certainty which the evidence warrants, would, if it became general, cure most of the ills from which the world is suffering. But at present, in most countries, education aims at preventing the growth of such a habit, and men who refuse to profess belief in some system of unfounded dogmas are not considered suitable as teachers of the young.

Written words differ from spoken words in being material structures. A spoken word is a process in the physical world, having an essential time-order; a written word is a series of pieces of matter, having an essential space-order.

I believe that if an individual is not on the path to transcending his society and seeing in what way it furthers or impedes the development of human potential, he cannot enter into intimate contact with his humanity. If the tabus, restrictions, distorted values appear "natural" to him, this is a clear indication that he cannot have a real knowledge of human nature. I believe that society, while having a function both stimulating and inhibiting at the same time, has always been in conflict with humanity. Only when the purpose of society is identified with that of humanity will society cease to paralyze man and encourage his dominance.

Thought is led, by the situation of its objects, to measure their truth in terms of another logic, another universe of discourse. And this logic projects another mode of existence: the realization of the truth in the words and deeds of man. And inasmuch as this project involves man as societal animal," the polis, the movement of thought has a political content. Thus, the Socratic discourse is political discourse inasmuch as it contradicts the established political institutions. The search for the correct definition, for the "concept" of virtue, justice, piety, and knowledge becomes a subversive undertaking, for the concept intends a new polis.

There is no more light in a genius than in any other honest man-but he has a particular kind of lens to concentrate this light into a burning point.

But if the labourers could live on air they could not be bought at any price.

No nation was ever so virtuous as each believes itself, and none was ever so wicked as each believes the other.

Art is not the possession of the few who are recognized writers, painters, musicians; it is the authentic expression of any and all individuality. Those who have the gift of creative expression in unusually large measure disclose the meaning of the individuality of others to those others. In participating in the work of art, they become artists in their activity. They learn to know and honor individuality in whatever form it appears. The fountains of creative activity are discovered and released. The free individuality which is the source of art is also the final source of creative development in time.

Our design, not respecting arts, but philosophy, and our subject, not manual, but natural powers, we consider chiefly those things which relate to gravity, levity, elastic force, the resistance of fluids, and the like forces, whether attractive or impulsive; and therefore we offer this work as mathematical principles of philosophy; for all the difficulty of philosophy seems to consist in this - from the phenomena of motions to investigate the forces of nature, and then from these forces to demonstrate the other phenomena...

Generally speaking, all the authorities exercising individual control function according to a double mode; that of binary division and branding (mad/sane; dangerous/harmless; normal/abnormal); and that of coercive assignment, of differential distribution (who he is; where he must be; how he is to be characterized' how he is to be recognized' how a constant surveillance is to be exercised over him in a individual way, etc.).

All men are liable to error; and most men are, in many points, by passion or interest, under temptation to it.

A confession has to be part of your new life.

We do not obtain the most precious gifts by going in search of them but by waiting for them. Man cannot discover them by his own powers, and if he sets out to seek for them he will find in their place counterfeits of which he will be unable to discern falsity.

Not to be a proud and haughty person, you have to follow the old proverb and "know thyself." That is to say, you must regard your special talents, whatever beauty or fame you have, as gifts from God, and not as things you earned for yourself. Whatever is low and mean is not God's doing, however. Here you can only blame yourself. Remember the squalor of your birth and how naked and poor you were when you crawled into the light of day like a little animal.

You have not that power you ought to have over him, till he comes to be more afraid of offending so good a friend than of losing some part of his future expectation.

Justice is itself the great standing policy of civil society; and any eminent departure from it, under any circumstances, lies under the suspicion of being no policy at all.

The external embodiment of an act is composed of many parts, and may be regarded as capable of being divided into an infinite number of particulars. An act may be looked on as in the first instance coming into contact with only one of these particulars. But the truth of the particular is the universal. A definite act is not confined in its content to one isolated point of the varied external world, but is universal, including these varied relations within itself. The purpose, which is the product of thought and embraces not the particular only but also the universal side, is intention.

I think that the principal and most basic spiritual need of the Russian People is the need for suffering, incessant and unslakeable suffering, everywhere and in everything. I think the Russian People have been infused with this need to suffer from time immemorial. A current of martyrdom runs through their entire history, and it flows not only from external misfortunes and disasters but springs from the very heart of the People themselves. There is always an element of suffering even in the happiness of the Russian People, and without it their happiness is incomplete.

For a truly religious man nothing is tragic.

The first cause cannot have been an intelligence, let alone an intelligence that answers prayers and enjoys being worshiped. Intelligent, creative, complex, statistically improbable things come late into the universe, as the product of evolution or some other process of gradual escalation from simple beginnings. They come late into the universe and therefore cannot be responsible for designing it. "Why There Almost Certainly Is No God", The Huffington Post, 23/10/2006

Now, as the Word of God is the Son of God, so the love of God is the Holy Spirit.

He who helps the guilty, shares the crime.

The superior man accords with the course of the Mean. Though he may be all unknown, unregarded by the world, he feels no regret. It is only the sage who is able for this.

It is not altogether true that persuasion is one thing and force is another. Many forms of persuasion - even many of which everybody approves - are really a kind of force. Consider what we do to our children. We do not say to them: "Some people think the earth is round, and others think it is flat; when you grow up, you can, if you like, examine the evidence and form your own conclusion." Instead of this we say: "The earth is round." By the time our children are old enough to examine the evidence, our propaganda has closed their minds.

I do not open up the truth to one who is not eager to get knowledge, nor help out any one who is not anxious to explain himself. When I have presented one corner of a subject to any one, and he cannot from it learn the other three, I do not repeat my lesson.

How can a rational being be ennobled by anything that is not obtained by its own exertions?

I saw a Divine Being. I'm afraid I'm going to have to revise all my various books and opinions.

If you want to be happy, be.

To save the world requires faith and courage: faith in reason, and courage to proclaim what reason shows to be true.

At one level, this movement on behalf of oppressed farm animals is emotional...Yet the movement is also the product of a deep intellectual ferment pioneered by the Princeton scholar Peter Singer...This idea popularized by Professor Singer - that we have ethical obligations that transcend our species - is one whose time appears to have come...What we're seeing now is an interesting moral moment: a grass-roots effort by members of one species to promote the welfare of others...animal rights are now firmly on the mainstream ethical agenda.

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.

There is no method of reasoning more common, and yet none more blameable, than in philosophical debates to endeavour to refute any hypothesis by a pretext of its dangerous consequences to religion and morality. When any opinion leads us into absurdities, 'tis certainly false; but 'tis not certain an opinion is false, because 'tis of dangerous consequence.

The "hard law of value," the "law set in stone"-when it abandons us, what sadness, what panic! This is why there are still good days left to fascist and authoritarian methods, because they revive something of the violence necessary to life-whether suffered or inflicted. The violence of ritual, the violence of work, the violence of knowledge, the violence of blood, the violence of power and of the political is good! It is clear, luminous, the relations of force, contradictions, exploitation, repression! This is lacking today, and the need for it makes itself felt.

Like the body the soul can be healthy, youthful, and so on. It can undergo pain, thirst, and hunger. In this physical life, that is, in the visible world, we avoid whatever would defile or deform the body; how much more, then, ought we to avoid that which would tarnish the soul?

...whoever is not against us is for us.

Religion should be .... successively freed from all statutes based on history, and one purely moral religion rule over all, in order that God might be all in all. The veil must fall. The leading-string of sacred tradition with all its appendices becomes by degrees useless, and at last a fetter ... The humiliating difference between laymen and clergymen must disappear, and equality spring from true liberty. All this, however, must not be expected from an exterior revolution, which acts violently, and depends upon fortune In the principle of pure moral religion, which is a sort of divine revelation constantly taking place in the soul of man, must be sought the ground for a passage to the new order of things, which will be accomplished by slow and successive reforms.

The attitude that living things are placed here for our benefit still dominates our culture, even where its underpinnings have disappeared. We now need, for purposes of scientific understanding, to find a less human-centered view of the natural world.

Natural selection is an extremely simple process, in the sense that very little machinery needs to be set up in order for it to work. Of course the effects and consequences of natural selection are complex in the extreme. But in order to set natural selection going on a real planet, all that is required is the existence of inherited information.

Men are qualified for civil liberty in exact proportion to their disposition to put moral chains upon their own appetites, - in proportion as their love to justice is above their rapacity, - in proportion as their soundness and sobriety of understanding is above their vanity and presumption, - in proportion as they are more disposed to listen to the counsels of the wise and good, in preference to the flattery of knaves. Society cannot exist, unless a controlling power upon will and appetite be placed somewhere; and the less of it there is within, the more there must be without. It is ordained in the eternal constitution of things, that men of intemperate minds cannot be free. Their passions forge their fetters.

The Being of the universe, at first hidden and concealed, has no power which can offer resistance to the search for knowledge ; it has to lay itself open before the seeker - to set before his eyes and give for his enjoyment, its riches and its depths.

My own view is that philosophy at its best has always, in every period, included some philosophers who brilliantly represent the moral face of the subject and some philosophers who brilliantly represent the theoretical face, as well as some geniuses whose insights span and unite both sides of the subject. To renounce either the moral ambitions of philosophy or its theoretical ambitions is not just to kill the subject of philosophy; it is to commit intellectual and spiritual suicide.

Inferiority is always with us, and merciless scorn of it is the keynote of the military temper.