Behind the stream of my mind and body, behind the stream of my race and all mankind, behind the stream of plants and animals, I watch with trembling the Invisible, treading on all visible things and ascending. Behind his heavy and blood-splattered feet I hear all living things being trampled on and crushed. His face is without laughter, dark and silent, beyond joy and sorrow, beyond hope.

In framing scientific terms, the appropriation of old words is preferable to the invention of new ones.

When I made my theoretical model, I could not have guessed that people would try to realise it with Molotov cocktails.

The husband who decides to surprise his wife is often very much surprised himself.

I had wished to visit a slaughter-house, in order to see with my own eyes the reality of the question raised when vegetarianism is discussed. But at first I felt ashamed to do so, as one is always ashamed of going to look at suffering which one knows is about to take place, but which one cannot avert; and so I kept putting off my visit. But a little while ago I met on the road a butcher ... He is not yet an experienced butcher, and his duty is to stab with a knife. I asked him whether he did not feel sorry for the animals that he killed. He gave me the usual answer: 'Why should I feel sorry? It is necessary.' But when I told him that eating flesh is not necessary, but is only a luxury, he agreed; and then he admitted that he was sorry for the animals.

The best life is the one in which the creative impulses play the largest part and the possessive impulses the smallest.

The best way to describe anyone is to give an example of the kind of thing he would do.

It is very strange that men should deny a creator and yet attribute to themselves the power of creating eels.

Once the philosophical foundation of democracy has collapsed, the statement that dictatorship is bad is rationally valid only for those who are not its beneficiaries, and there is no theoretical obstacle to the transformation of this statement into its opposite.

It is sweet and honorable to die for one's country.

Reason perhaps teaches certain bourgeois virtues, but it does not make either heroes or saints.

We Jews have been too adaptable. We have been too eager to sacrifice our idiosyncrasies for the sake of social conformity. ... Even in modern civilization, the Jew is most happy if he remains a Jew.

It is the duty of all who care for their country or for civilisation to point out that we cannot further any of our ideals by participation in the next war, and that we ought therefore to resist all measures based upon the assumption that we shall take part in it. In the late war it was arguable that victory, being possible, might do some good. With the modern technique of gas attack, no belligerent can hope for victory. Absolute pacifism, therefore, in every country, in which it is politically possible, is the only sane policy both for Governments and individuals.

Freedom of thought and of expression are not mere rights to be claimed. They have their roots deep in the existence of individuals as developing careers in time. Their denial and abrogation is an abdication of individuality and a virtual rejection of time as opportunity.

Who is everywhere is nowhere. When a person spends all his time in foreign travel, he ends by having many acquaintances, but no friends.

I have come to believe that the motion of the Earth cannot be detected by any optical experiment.

It is not given to a cylinder to move everywhere by its own motion, nor yet to water nor to fire nor to anything else which is governed by nature or an irrational soul, for the things which check them and stand in the way are many. But intelligence and reason are able to go through everything that opposes them, and in such manner as they are formed by nature and as they choose. Place before thy eyes this facility with which the reason will be carried through all things, as fire upwards, as a stone downwards, as a cylinder down an inclined surface, and seek for nothing further. For all other obstacles either affect the body only, which is a dead thing; or, except for opinion and the yielding of reason itself, they do not crush nor do any harm of any kind; for if they did, he who felt it would immediately become bad.

We do not count a man's years until he has nothing else to count.

Nothing in all literature is so depressing as the "Dissertations" of the slave [Epictetus], unless it be the "Meditations" of the Emperor [Marcus Aurelius] ...[after some excerpts from the two books]..... In such passages we feel the proximity of Christianity and its dauntless martyrs; indeed were not the Christian ethic of self-denial, the Christian political ideal of an almost communistic brotherhood of man, and the Christian eschatology of the final conflagration of all the world, fragments of Stoic doctrine floating on the stream of thought? In Epictetus the Greco-Roman soul has lost its paganism, and is ready for a new faith".

My education, which was wholly his work, had been conducted without any regard to the possibility of its ending in this result; and I saw no use in giving him the pain of thinking that his plans had failed, when the failure was probably irremediable, and, at all events, beyond the power of his remedies. Of other friends, I had at that time none to whom I had any hope of making my condition intelligible. It was however abundantly intelligible to myself; and the more I dwelt upon it, the more hopeless it appeared.

One cannot become a saint when one works sixteen hours a day.

The question Whether one generation of men has a right to bind another, seems never to have been started either on this or our side of the water. Yet it is a question of such consequences as not only to merit decision, but place also, among the fundamental principles of every government. The course of reflection in which we are immersed here on the elementary principles of society has presented this question to my mind; & that no such obligation can be so transmitted I think very capable of proof. I set out on this ground, which I suppose to be self-evident, 'that the earth belongs in usufruct to the living': that the dead have neither powers nor rights over it. The portion occupied by any individual ceases to be his when himself ceases to be, & reverts to the society.

There was a loud echo of Hume in Mach's work, as both emphasized the tangibility of all knowledge-ultimately, all knowledge is based in the senses. Mach also emphasized the internal nature of all knowledge, in that it is experienced in the mind. Finally, he emphasized the importance of quantitative and mathematical methods and models to understand sensory experience.

Nothing makes the earth seem so spacious as to have friends at a distance; they make the latitudes and longitudes.

Progressives on the left have shown themselves willing to abandon liberal values in pursuit of social justice objectives. There has been a sustained intellectual attack on liberal principles over the past three decades coming out of academic pursuits like gender studies, critical race theory, postcolonial studies, and queer theory, that deny the universalistic premises underlying modern liberalism. The challenge is not simply one of intolerance of other views or "cancel culture" in the academy or the arts. Rather, the challenge is to basic principles that all human beings were born equal in a fundamental sense, or that a liberal society should strive to be color-blind.

As a human being it is just my nature to enjoy and share philosophy. I do this in the same way that some birds are eagles and some doves, some flowers lilies and some roses.

I am well aware of how anarchic much of what I say may sound. Expressing myself thus abstractly and briefly, I may seem to despair of the very notion of truth. But I beseech you to reserve your judgment until we see it applied to the details which lie before us. I do indeed disbelieve that we or any other mortal men can attain on a given day to absolutely incorrigible and unimprovable truth about such matters of fact as those with which religions deal. But I reject this dogmatic ideal not out of a perverse delight in intellectual instability. I am no lover of disorder and doubt as such. Rather do I fear to lose truth by this pretension to possess it already wholly.

The oneness of the universe, and the oneness of each element of the universe, repeat themselves to the crack of doom in the creative advance from creature to creature, each creature including in itself the whole of history and exemplifying the self-identity of things and their mutual diversities.

An arrow has one motion and the mind another. Even when pausing, even when weighing conclusions, the mind is moving forward, toward its goal. (Hays translation) VIII, 60

When new technologies impose themselves on societies long habituated to older technologies, anxieties of all kinds result.

The notion that one can discover large patterns or regularities in the procession of historical events is naturally attractive to those who are impressed by the success of the natural sciences in classifying, correlating, and above all predicting.

It is the fantasy of seizing reality live that continues-ever since Narcissus bent over his spring. Surprising the real in order to immobilize it, suspending the real in the expiration of its double. You bend over the hologram like God over his creature: only God has this power of passing through walls, through people, and finding Himself immaterially in the beyond. We dream of passing through ourselves and of finding ourselves in the beyond: the day when your holographic double will be there in space, eventually moving and talking, you will have realized this miracle. Of course, it will no longer be a dream, so its charm will be lost.

Alexander, king of Macedon, began to study geometry; unhappy man, because he would thereby learn how puny was that earth of which he had seized but a fraction! Unhappy man, I repeat, because he was bound to understand that he was bearing a false title. For who can be "great" in that which is puny?

Men may one day feel that they are partakers of a common nature, and that true freedom and perfect equity, like food and air, are pregnant with benefit to every constitution.

Systems, scientific and philosophic, come and go. Each method of limited understanding is at length exhausted. In its prime each system is a triumphant success: in its decay it is an obstructive nuisance.

If good music has charms to soothe the savage breast, bad music has no less powerful spells for filling the mildest breast with rage, the happiest with horror and disgust. Oh, those mammy songs, those love longings, those loud hilarities! How was it possible that human emotions intrinsically decent could be so ignobly parodied.

And seeing every man is presumed to do all things in order to his own benefit, no man is a fit Arbitrator in his own cause.

A circuit performed by a capital and meant to be a periodical process, not an individual act, is called its turnover. The duration of this turnover is determined by the sum of its time of production and its time of circulation.

No one is ignorant that there are two avenues by which opinions are received into the soul, which are its two principal powers: the understanding and the will.

Zeal to do all that is in one's power is, in truth, a proof of piety.

Bush and bin Laden are really on the same side: the side of faith and violence against the side of reason and discussion. Both have implacable faith that they are right and the other is evil. Each believes that when he dies he is going to heaven. Each believes that if he could kill the other, his path to paradise in the next world would be even swifter. The delusional "next world" is welcome to both of them. This world would be a much better place without either of them.

I may not have been sure about what really did interest me, but I was absolutely sure about what didn't.