No one can be perfectly free till all are free; no one can be perfectly moral till all are moral; no one can be perfectly happy till all are happy.

Philosophy is to be studied, not for the sake of any definite answers to its questions, since no definite answers can, as a rule, be known to be true, but rather for the sake of the questions themselves; because these questions enlarge our conception of what is possible, enrich our intellectual imagination and diminish the dogmatic assurance which closes the mind against speculation; but above all because, through the greatness of the universe which philosophy contemplates, the mind is also rendered great, and becomes capable of that union with the universe which constitutes its highest good.

But oppression by your Mock-Superiors well shaken off, the grand problem yet remains to solve: That of finding government by your Real-Superiors! Alas, how shall we ever learn the solution of that, benighted, bewildered, sniffing, sneering, godforgetting unfortunates as we are? It is a work for centuries; to be taught us by tribulations, confusions, insurrections, obstructions; who knows if not by conflagration and despair! It is a lesson inclusive of all other lessons; the hardest of all lessons to learn.

There is only this swarm of dying creatures stricken with longevity, all the more hateful in that they are so good at organizing their agony. p. 120, first American edition

Even if the whole world were to fall to pieces, the unity of the psyche would never be shattered. And the wider and more numerous the fissures on the surface, the more the unity is strengthened in the depths.

Eros is a superhuman power which, like nature herself, allows itself to be conquered and exploited as though it were impotent. But triumph over nature is dearly paid for. Nature requires no explanations of principle, but asks only for tolerance and wise measure. "Eros is a mighty daemon," as the wise Diotima said to Socrates. We shall never get the better of him, or only to our own hurt. He is not the whole of our inward nature, though he is at least one of its essential aspects.

In recent times it has been fashionable to talk of the levelling of nations, of the disappearance of different races in the melting-pot of contemporary civilization. I do not agree with this opinion, but its discussion remains another question. Here it is merely fitting to say that the disappearance of nations would have impoverished us no less than if all men had become alike, with one personality and one face. Nations are the wealth of mankind, its collective personalities; the very least of them wears its own special colours and bears within itself a special facet of divine intention.

Dionysius the Elder, being asked whether he was at leisure, he replied, "God forbid that it should ever befall me!"

Medicine considers the human body as to the means by which it is cured and by which it is driven away from health.

Constitutional freedom, as the right of every citizen to have to obey no other law than that to which he has given his consent or approval.

Whate'er we leave to God, God doesAnd blesses us.

He that is to govern a whole Nation, must read in himself, not this, or that particular man; but Mankind; which though it be hard to do, harder than to learn any Language, or Science; yet, when I shall have set down my own reading orderly, and perspicuously, the pains left another, will be only to consider, if he also find not the same in himself. For this kind of Doctrine, admitteth no other Demonstration.

Oatmeal indeed supplies the common people of Scotland with the greatest and best part of their food, which is in general much inferior to that of their neighbours of the same rank in England.

Once we reject lyricism, to blacken a page becomes an ordeal: what's the use of writing in order to say exactly what we had to say?

I am against bigness and greatness in all their forms, and with the invisible molecular moral forces that work from individual to individual, stealing in through the crannies of the world like so many soft rootlets, or like the capillary oozing of water, and yet rending the hardest monuments of man's pride, if you give them time. The bigger the unit you deal with, the hollower, the more brutal, the more mendacious is the life displayed. So I am against all big organizations as such, national ones first and foremost; against all big successes and big results; and in favor of the eternal forces of truth which always work in the individual and immediately unsuccessful way, under-dogs always, till history comes, after they are long dead, and puts them on top. - You need take no notice of these ebullitions of spleen, which are probably quite unintelligible to anyone but myself.

One can imagine a computer simulation of the action of peptides in the hypothalamus that is accurate down to the last synapse. But equally one can imagine a computer simulation of the oxidation of hydrocarbons in a car engine or the action of digestive processes in a stomach when it is digesting pizza. And the simulation is no more the real thing in the case of the brain than it is in the case of the car or the stomach. Barring miracles, you could not run your car by doing a computer simulation of the oxidation of gasoline, and you could not digest pizza by running the program that simulates such digestion. It seems obvious that a simulation of cognition will similarly not produce the effects of the neurobiology of cognition.

It appears... that a work similar in its object and general conception to that of Adam Smith, but adapted to the more extended knowledge and improved ideas of the present age, is the kind of contribution which Political Economy at present requires. The Wealth of Nations is in many parts obsolete, and in all, imperfect. Political Economy... has grown up almost from infancy since the time of Adam Smith; and the philosophy of society... has advanced many steps beyond the point at which he left it.

The rudest heathen that worshipped Canopus, or the Caabah Black-Stone, he, as we saw, was superior to the horse that worshipped nothing at all! Nay there was a kind of lasting merit in that poor act of his; analogous to what is still meritorious in Poets: recognition of a certain endless divine beauty and significance in stars and all natural objects whatsoever.

Be afraid of the Chinese. I mean, the Chinese shoot down satellites in space; they hack into Google's computers; the Osama bin Laden people can't make their underwear blow up.

The middle sort of historians (of which the most part are) spoil all; they will chew our meat for us.

Mankind is born for mutual assistance, anger for mutual ruin: the former loves society, the latter estrangement.

Just that you do the right thing. The rest doesn't matter. Cold or warm. Tired or well-rested. Despised or honored. Dying . . . or busy with other assignments.

Try to learn something about everything and everything about something.

The key to understanding Crowley is the same as the key to understanding the Marquis de Sade. Both wasted an immense amount of energy screaming defiance at the authority they resented so much, and lacked the insight to see that they were shaking their fists at an abstraction.

As the mathematics are now understood, each branch - or, if you please, each problem, - is but the study of the relations of a collection of connected objects, without parts, without any distinctive characters, except their names or designating letters. These objects are commonly called points; but to remove all notion of space relations, it may be better to name them monads. The relations between these points are mere complications of two different kinds of elementary relations, which may be termed immediate connection and immediate non-connection. All the monads except as serve as intermediaries for the connections have distinctive designations.

From whence it follows, that were the publique and private interest are most closely united, there is the publique most advanced.

To hope means to be ready at every moment for that which is not yet born, and yet not become desperate if there is no birth in our lifetime.

In living bodies, how all the various limbs harmonize, and mutually combine, for common defence against injury! What can be more heterogeneous, and unlike, than the body and the soul? and yet with what strong bonds nature has united them, is evident from the pang of separation. As life itself is nothing else but the concordant union of body and soul, so is health the harmonious cooperation of all the parts and functions of the body.

What is the first business of one who practices philosophy? To get rid of self-conceit. For it is impossible for anyone to begin to learn that which he thinks he already knows.

Actions may be laudable or blameable; but they cannot be reasonable: Laudable or blameable, therefore, are not the same with reasonable or unreasonable. The merit and demerit of actions frequently contradict, and sometimes controul our natural propensities. But reason has no such influence. Moral distinctions, therefore, are not the offspring of reason. Reason is wholly inactive, and can never be the source of so active a principle as conscience, or a sense of morals.

Not my idea of God, but God.

It is so by nature that the plant will develop with regularity, that the animal will move purposefully, and that human beings will think. Why should I take exception to recognizing also the last as the expression of an original force of nature, as I do the first and the second?

The Text is plural. Which is not simply to say that it has several meanings, but that it accomplishes the very plural of meaning: an irreducible (and not merely an acceptable) plural. The Text is not a co-existence of meanings but a passage, an overcrossing; thus it answers not to an interpretation, even a liberal one, but to an explosion, a dissemination.

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.

The regime which is destroyed by a revolution is almost always an improvement on its immediate predecessor, and experience teaches that the most critical moment for bad governments is the one which witnesses their first steps toward reform.

You won't - I really believe - get too much out of reading it. Because you won't understand it; the content will seem strange to you. In reality, it isn't strange to you, for the point is ethical. I once wanted to give a few words in the foreword which now actually are not in it, which, however, I'll write to you now because they might be a key for you: I wanted to write that my work consists of two parts: of the one which is here, and of everything which I have not written. And precisely this second part is the important one.

In a free society the state does not administer the affairs of men. It administers justice among men who conduct their own affairs.

If the king loves music, there is little wrong in the land.

Your reason is now mature enough to examine this object religion. In the first place divest yourself of all bias in favour of novelty & singularity of opinion. Indulge them in any other subject rather than that of religion. It is too important, & the consequences of error may be too serious. On the other hand shake off all the fears & servile prejudices under which weak minds are servilely crouched. Fix reason firmly in her seat, and call to her tribunal every fact, every opinion. Question with boldness even the existence of a god; because, if there be one, he must more approve the homage of reason, than that of blindfolded fear.

You take souls for vegetables.... The gardener can decide what will become of his carrots but no one can choose the good of others for them.

The liberty of man consists solely in this: that he obeys natural laws because he has himself recognized them as such, and not because they have been externally imposed upon him by any extrinsic will whatever, divine or human, collective or individual.

It is the peculiarity of privilege and of every privileged position to kill the intellect and heart of man. The privileged man, whether he be privileged politically or economically, is a man depraved in intellect and heart.

Science is a systematic method for studying and working out those generalizations that seem to describe the behavior of the universe. It could exist as a purely intellectual game that would never affect the practical life of human beings either for good or evil, and that was very nearly the case in ancient Greece, for instance. Technology is the application of scientific findings to the tools of everyday life, and that application can be wise or unwise, useful or harmful. Very often, those who govern technological decisions are not scientists and know little about science.

If I negate powdered wigs, I am still left with unpowdered wigs.

Missionaries, whether of philosophy or of religion, rarely make rapid way, unless their preachings fall in with the prepossessions of the multitude of shallow thinkers, or can be made to serve as a stalking-horse for the promotion of the practical aims of the still larger multitude, who do not profess to think much, but are quite certain they want a great deal.

It seems clear to me that marriage ought to be constituted by children, and relations not involving children ought to be ignored by the law and treated as indifferent by public opinion. It is only through children that relations cease to be a purely private matter.