That life is worth living is the most necessary of assumptions and, were it not assumed, the most impossible of conclusions.

I write in a hurry, because the little one, who has been sleeping a long time, begins to call for me. Poor thing! when I am sad, I lament that all my affections grow on me, till they become too strong for my peace, though they all afford me snatches of exquisite enjoyment.

He maintained this attitude up to the very end, and no man ever saw Socrates too much elated or too much depressed. Amid all the disturbance of Fortune, he was undisturbed.

To understand how indirect communication is possible we must grasp what it is about ordinary communication that is being changed.

I maintain that inversion is the effect of neither a prenatal choice nor an endocrinal malformation nor even the passive and determined result of complexes. It is an outlet that a child discovers when he is suffocating.

Perhaps I am more than usually jealous with respect to my freedom. I feel that my connection with and obligation to society are still very slight and transient. Those slight labors which afford me a livelihood, and by which it is allowed that I am to some extent serviceable to my contemporaries, are as yet commonly a pleasure to me, and I am not often reminded that they are a necessity. So far I am successful. But I foresee, that, if my wants should be much increased, the labor required to supply them would become a drudgery. If I should sell both my forenoons and afternoons to society, as most appear to do, I am sure, that, for me, there would be nothing left worth living for. I trust that I shall never thus sell my birthright for a mess of pottage.

My thought is me: that's why I can't stop. I exist because I think ... and I can't prevent myself from thinking.

Rules necessary for demonstrations. To prove all propositions, and to employ nothing for their proof but axioms fully evident of themselves, or propositions already demonstrated or admitted; Never to take advantage of the ambiguity of terms by failing mentally to substitute definitions that restrict or explain them.

The devil is an angel too.

Art, I suppose, is only for beginners, or else for those resolute dead-enders, who have made up their minds to be content with the ersatz of Suchness, with symbols rather than with what they signify, with the elegantly composed recipe in lieu of actual dinner.

Media are means of extending and enlarging our organic sense lives into our environment.

A robot may not injure a human being, or, through inaction, allow a human being to come to harm.

Virtue supposes liberty, as the carrying of a burden supposes active force. Under coercion there is no virtue, and without virtue there is no religion. Make a slave of me, and I shall be no better for it. Even the sovereign has no right to use coercion to lead men to religion, which by its nature supposes choice and liberty. My thought is no more subject to authority than is sickness or health.

Sixty years ago I knew everything. Now I know nothing. Education is a progressive discovery of our own ignorance.

I shall need only myself to be happy.

The poet takes us straight into the presence of things. Not by explanation, but by indication; not by exhausting its qualities, but by suggesting its value he gives us the object, raising it from the mire where it lies trodden by the concepts of the understanding, freeing it from the entanglements of all that "the intellect perceives as if constituting its essence." Thus exhibited, the object itself becomes the meeting-ground of the ages, a centre where millions of minds can enter together into possession of the common secret. It is true that language is here the instrument with which the fetters of language are broken. Words are the shifting detritus of the ages; and as glass is made out of the sand, so the poet makes windows for the soul out of the very substance by which it has been blinded and oppressed. In all great poetry there is a kind of "kenosis" of the understanding, a self-emptying of the tongue. Here language points away from itself to something greater than itself.

Looking back we can see how indirectly we know the environment in which nevertheless we live. We can see that the news of it comes to us now fast, now slowly; but that whatever we believe to be a true picture, we treat as if it were the environment itself.

The inner trip is not the sole prerogative of the LSD traveler; it's the universal experience of TV watchers.

Language is a city to the building of which every human being brought a stone; yet he is no more to be credited with the grand result than the acaleph which adds a cell to the coral reef which is the basis of the continent.

If it were so, as conceited sagacity, proud of not being deceived, thinks, that we should believe nothing that we cannot see with our physical eyes, then we first and foremost ought to give up believing in love. ... We can be deceived by believing what is untrue, but we certainly are also deceived by not believing what is true. ... Which deception is more dangerous?

Not that I at all disallow the use of reasoning upon experiments, or the endeavouring to discern as early as we can the confederations, and differences, and tendencies of things: for such an absolute suspension of the exercise of reasoning were exceeding troublesome, if not impossible. And, as in that rule of arithmetic, which is commonly called regula falsi by proceeding upon a conjecturally-supposed number, as if it were that, which we inquire after, we are wont to come to the knowledge of the true number sought for; so in physiology it is sometimes conducive to the discovery of truth, to permit the understanding to make an hypothesis, in order to the explication of this or that difficulty, that by examining how far the phænomena are, or are not, capable of being solved by that hypothesis, the understanding may, even by its own errors, be instructed.

It is false that kings are entitled to the eminence they obtain. They possess no intrinsic superiority over their subjects. The line of distinction that is drawn is the offspring of pretense, an indirect means employed for effecting certain purposes, and not the language of truth. It tramples upon the genuine nature of things, and depends for its support upon this argument, 'that, were it not for impositions of a similar nature, mankind would be miserable.'

This is precisely what is decisive in Nietzsche's conception of art, that he sees it in its essential entirety in terms of the artist; this he does consciously and in explicit opposition to that conception of art which represents it in terms of those who "enjoy" and "experience" it.That is a guiding principle of Nietzsche's teaching on art: art must be grasped in terms of creators and producers, not recipients. Nietzsche expresses it unequivocally in the following words (WM, 811): "Our aesthetics heretofore has been a woman's aesthetics, inasmuch as only the recipients of art have formulated their experiences of 'what is beautiful.' In all philosophy to date the artist is missing." Philosophy of art means "aesthetics" for Nietzsche too-but masculine aesthetics, not feminine aesthetics. The question of art is the question of the artist as the productive, creative one; his experiences of what is beautiful must provide the standard.

Science is not a system of certain, or well established, statements; nor is it a statement which steadily advances towards state of finality. Our science is not knowledge (epistēmē): it can newer claim to have attained truth, or even substitute for it, such as probability. . . . We do not know; we can only guess.

The hazards of the generalized prisoner's dilemma are removed by the match between the right and the good.

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

Men that look no further than their outsides, think health an appurtenance unto life, and quarrel with their constitutions for being sick; but I that have examined the parts of man, and know upon what tender filaments that fabric hangs, do wonder that we are not always so; and considering the thousand doors that lead to death, do thank my God that we can die but once.

Communism is the doctrine of the conditions of the liberation of the proletariat.

It makes unavoidably necessary an entirely new organization of society in which production is no longer directed by mutually competing individual industrialists but rather by the whole society operating according to a definite plan and taking account of the needs of all.

The first remark we have to make, and which - though already presented more than once - cannot be too often repeated when the occasion seems to call for it, - is that what we call principle, aim, destiny, or the nature and idea of Spirit, is something merely general and abstract. Principle - Plan of Existence - Law - is a hidden, undeveloped essence, which as such - however true in itself - is not completely real.

It seems to me that the god that is commonly worshipped in civilized countries is not at all divine, though he bears a divine name, but is the overwhelming authority and respectability of mankind combined. Men reverence one another, not yet God. If I thought that I could speak with discrimination and impartiality of the nations of Christendom, I should praise them, but it tasks me too much. They seem to be the most civil and humane, but I may be mistaken.

Everywhere in life, the true question is not what we gain, but what we do.

Under no pretext should arms and ammunition be surrendered; any attempt to disarm the workers must be frustrated, by force if necessary.

The logic now in use serves rather to fix and give stability to the errors which have their foundation in commonly received notions than to help the search for truth. So it does more harm than good.

Every attempt to refer chemical questions to mathematical doctrines must be considered, now and always, profoundly irrational, as being contrary to the nature of the phenomena. . . . but if the employment of mathematical analysis should ever become so preponderant in chemistry (an aberration which is happily almost impossible) it would occasion vast and rapid retrogradation....

It is justice, not charity, that is wanting in the world.

It often happens that reforms merely have the effect of transferring the undesirable tendencies of individuals from one channel to another channel. An old outlet for some particular wickedness is closed; but a new outlet is opened. The wickedness is not abolished; it is merely provided with a different set of opportunities for self-expression.

It is a great art to saunter.

The French symbolists had a special term to express their love for things that had lost their objective significance, namely, 'spleen.' The conscious, challenging arbitrariness in the choice of objects, its 'absurdity' and 'perverseness,' as if by a silent gesture discloses the irrationality of utilitarian logic, which it then slaps in the face in order to demonstrate its inadequacy with regard to human experience. And while making it conscious, by this shock, of the fact that it forgets the subject, the gesture simultaneously expresses the subject's sorrow over his inability to achieve an objective order. Twentieth-century society is not troubled by such inconsistencies. For it, meaning can be achieved in only one way-service for a purpose.

The Hudson's Bay Company, before their misfortunes in the late war, had been much more fortunate than the Royal African Company.

The spirit of resistance to government is so valuable on certain occasions, that I wish it to be always kept alive. It will often be exercised when wrong, but better so than not to be exercised at all. I like a little rebellion now and then. It is like a storm in the atmosphere.

It is evident that this, among many other of the purposes of my father's scheme of education, could not have been accomplished if he had not carefully kept me from having any great amount of intercourse with other boys. He was earnestly bent upon my escaping not only the ordinary corrupting influence which boys exercise over boys, but the contagion of vulgar modes of thought and feeling; and for this he was willing that I should pay the price of inferiority in the accomplishments which schoolboys in all countries chiefly cultivate. The deficiencies in my education were principally in the things which boys learn from being turned out to shift for themselves, and from being brought together in large numbers.

The Americans never use the word peasant, because they have no idea of the class which that term denotes; the ignorance of more remote ages, the simplicity of rural life, and the rusticity of the villager have not been preserved among them; and they are alike unacquainted with the virtues, the vices, the coarse habits, and the simple graces of an early stage of civilization.

It is only when we think abstractly that we have such a high opinion of man. Of men in the concrete, most of us think the vast majority very bad. Civilized states spend more than half their revenue on killing each other's citizens. Consider the long history of the activities inspired by moral fervour: human sacrifices, persecutions of heretics, witch-hunts, pogroms leading up to wholesale extermination by poison gases ... Are these abominations, and the ethical doctrines by which they are prompted, really evidence of an intelligent Creator? And can we really wish that the men who practised them should live for ever? The world in which we live can be understood as a result of muddle and accident; but if it is the outcome of a deliberate purpose, the purpose must have been that of a fiend. For my part, I find accident a less painful and more plausible hypothesis.

A further threat to liberalism has to do with the mode of cognition that we call modern natural science. The early liberals were very closely aligned with the founders of modern natural science, people like Bacon and Descartes and Newton, who believed that there was an objective world beyond our subjective consciousnesses, that we could perceive this world through the experimental method, and then come to manipulate it. Natural science gave us technology... that made the world much more habitable, by conquering disease, by inventing things that vastly increased human productivity. So... it's closely related to the wealth, and... the safety and comfort of a modern economically developed world.

It is not my aim to surprise or shock you - but the simplest way I can summarize is to say that there are now in the world machines that think, that learn and that create. Moreover, their ability to do these things is going to increase rapidly until - in a visible future - the range of problems they can handle will be coextensive with the range to which the human mind has been applied.

He was often, and much beyond reason, provoked by my failures in cases where success could not have been expected; but in the main his method was right, and it succeeded. I do not believe that any scientific teaching ever was more thorough, or better fitted for training the faculties, than the mode in which logic and political economy were taught to me by my father. Striving, even in an exaggerated degree, to call forth the activity of my faculties, by making me find out everything for myself, he gave his explanations not before, but after, I had felt the full force of the difficulties; and not only gave me an accurate knowledge of these two great subjects, as far as they were then understood, but made me a thinker on both.