Fathers and teachers, I ponder, "What is hell?" I maintain that it is the suffering of being unable to love.

There are more ideas on earth than intellectuals imagine. And these ideas are more active, stronger, more resistant, more passionate than "politicians" think. We have to be there at the birth of ideas, the bursting outward of their force: not in books expressing them, but in events manifesting this force, in struggles carried on around ideas, for or against them. Ideas do not rule the world. But it is because the world has ideas (and because it constantly produces them) that it is not passively ruled by those who are its leaders or those who would like to teach it, once and for all, what it must think.

The ethical commonplaces of any period include ideas that may have been radical discoveries in a previous age. This is true of modern conceptions of liberty, equality, and democracy, and we are in the midst of ethical debates which will probably result two hundred years hence in a disseminated moral sensibility that people of our time would find very unfamiliar.

The person attempting to travel two roads at once will get nowhere.

Logical consequences are the scarecrows of fools and the beacons of wise men.

Man grows used to everything, the scoundrel.

There are things I can't force. I must adjust. There are times when the greatest change needed is a change of my viewpoint.

Those who are most to be considered, those for whose help the struggle must be made, if labor is to be enfranchised, and social justice won, are those least able to help or struggle for themselves, those who have no advantage of property or skill or intelligence, - the men and women who are at the very bottom of the social scale. In securing the equal rights of these we shall secure the equal rights of all. Hence it is, as Mazzini said, that it is around the standard of duty rather than around the standard of self-interest that men must rally to win the rights of man. And herein may we see the deep philosophy of Him who bade men love their neighbors as themselves. In that spirit, and in no other, is the power to solve social problems and carry civilization onward.

I can calculate the motions of erratic bodies, but not the madness of a multitude.

Money, then, appears as this overturning power both against the individual and against the bonds of society, etc., which claim to be essences in themselves. It transforms fidelity into infidelity, love into hate, hate into love, virtue into vice, vice into virtue, servant into master, master into servant, idiocy into intelligence and intelligence into idiocy.

A difference which makes no difference is no difference at all.

Education will enable young people quickly to familiarize themselves with the whole system of production and to pass from one branch of production to another in response to the needs of society or their own inclinations. It will, therefore, free them from the one-sided character which the present-day division of labor impresses upon every individual. Communist society will, in this way, make it possible for its members to put their comprehensively developed faculties to full use. But, when this happens, classes will necessarily disappear. It follows that society organized on a communist basis is incompatible with the existence of classes on the one hand, and that the very building of such a society provides the means of abolishing class differences on the other.

The government of the United States have no idea of paying their debt in a depreciated medium, and... in the final liquidation of the payments which shall have been made, due regard will be had to an equitable allowance for the circumstance of depreciation.

Moral Teleology supplies the deficiency in physical Teleology, and first establishes a Theology; because the latter, if it did not borrow from the former without being observed, but were to proceed consistently, could only found a Demonology, which is incapable of any definite concept.

Hear first the four roots of all things: shining Zeus, life-bringing Hera, Aidoneus, and Nestis, who wets with tears the mortal wellspring.

Sincerity is the end and beginning of things; without sincerity there would be nothing. On this account, the superior man regards the attainment of sincerity as the most excellent thing.

Once again, I experienced that overwhelming joy in the universe that I had felt in London outside the V and A. But this time, my consciousness of the world seemed larger, more complex. It was the mystic's sensation of oneness, of everything blending into everything else. Everything I looked at reminded me of something else, which also became present to my consciousness, as if I were simultaneously seeing a million worlds and smelling a million scents and hearing a million sounds-- not mixed up, but each separate and clear. I was overwhelmed with a sense of my smallness in the face of this vast, beautiful, objective universe, this universe whose chief miracle is that it exists, as well as myself. It is no dream, but a great garden in which life is trying to obtain a foothold. I experienced a desire to burst into tears of gratitude; then I controlled it, and the feeling subsided into a calm sense of immense, infinite beauty.

People are entirely too disbelieving of coincidence. They are far too ready to dismiss it and to build arcane structures of extremely rickety substance in order to avoid it. I, on the other hand, see coincidence everywhere as an inevitable consequence of the laws of probability, according to which having no unusual coincidence is far more unusual than any coincidence could possibly be.

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

The faith that stands on authority is not faith.

I was convinced - and I am so still - that the fundamental principles of Christianity have to be proved true by reasoning, and by no other method. Reason, I said to myself, is given us that we may bring everything within the range of its action, even the most exalted ideas of religion. And this certainty filled me with joy.

We are wont to call that human reasoning which we apply to Nature the anticipation of Nature (as being rash and premature) and that which is properly deduced from things the interpretation of Nature.

The happy consciousness is shaky enough-a thin surface over fear, frustration, and disgust.

Therefore tolerance of diversity, of people that don't believe the same thing that you do, has always been at the core of this pragmatic project to enable diverse populations to live with one another.

Literacy, in translating man out of the closed world of tribal depth and resonance, gave man an eye for an ear and ushered him into a visual open world of specialized and divided consciousness.

It is in applied psychology, if anywhere, that today we should be modest and grant validity to a number of apparently contradictory opinions; for we are still far from having anything like a thorough knowledge of the human psyche, that most challenging field of scientific enquiry. For the present we have merely more or less plausible opinions that defy reconciliation.

Often must you turn your pencil to erase, if you hope to write something worth a second reading.

I do not think it possible to get anywhere if we start from scepticism. We must start from a broad acceptance of whatever seems to be knowledge and is not rejected for some specific reason.

Technology discloses the active relation of man towards nature, as well as the direct process of production of his very life, and thereby the process of production of his basic societal relations, of his own mentality, and his images of society, too.

What the horrors of war are, no one can imagine - they are not wounds and blood and fever, spotted and low, or dysentery, chronic and acute, cold and heat and famine - they are intoxication, drunken brutality, demoralization and disorder on the part of the inferior, jealousies, meanness, indifference, selfish brutality on the part of the superior.

A religious symbol does not rest on any opinion. And error belongs only with opinion. One would like to say: This is what took place here; laugh, if you can.

Choose rather to be strong in soul than in body.

The martyr sacrifices herself (himself in a few instances) entirely in vain. Or rather not in vain; for she (or he) makes the selfish more selfish, the lazy more lazy, the narrow narrower.

This I think is sufficiently evident, that children generally hate to be idle. All the care then is, that their busy humour should be constantly employ'd in something of use to them; which, if you will attain, you must make what you would have them do a recreation to them, and not a business.

When equality is treated not as a medicine or a safety-gadget, but as an ideal, we begin to breed that stunted and envious sort of mind which hates all superiority. That mind is the special disease of democracy, as cruelty and servility are the special diseases of privileged societies. It will kill us all if it grows unchecked. The man who cannot conceive a joyful and loyal obedience on the one hand, nor an unembarrassed and noble acceptance of that obedience on the other - the man who has never even wanted to kneel or to bow - is a prosaic barbarian. But it would be wicked folly to restore these old inequalities on the legal or external plane. Their proper place is elsewhere.

There is no more lovely, friendly and charming relationship, communion or company than a good marriage.

Men are at variance with the one thing with which they are in the most unbroken communion, the reason that administers the whole universe.

There are no connections in resonant space. There are only interfaces and metamorphoses.

To my complete surprise, that exposure to out-of-date scientific theory and practice radically undermined some of my basic conceptions about the nature of science and the reasons for its special success.Those conceptions were ones I had previously drawn partly from scientific training itself and partly from a long-standing avocational interest in the philosophy of science. Somehow, whatever their pedagogic utility and their abstract plausibility, those notions did not at all fit the enterprise that historical study displayed. Yet they were and are fundamental to many discussions of science, and their failures of verisimilitude therefore seemed thoroughly worth pursuing. The result was a drastic shift in my career plans, a shift from physics to history of science and then, gradually, from relatively straightforward historical problems back to the more philosophical concerns that had initially led me to history.

Blast Sputnik for closing terrestrial nature in a man-made environment that transfers the evolutionary process from biology to technology.

All the future of socialism resides in the autonomous development of workers' syndicates.

Camus said there is only really one serious philosophical question, which is whether or not to commit suicide. I think there are four or five serious philosophical questions: The first one is: Who started it? The second is: Are we going to make it? The third is: Where are we going to put it? The fourth is: Who's going to clean up? And the fifth: Is it serious?

The ability to speak exactly is intimately related to the ability to know exactly.

Whence do you have it that the terrestrial globe is so heavy? For my part, either I do not know what heaviness is, or the terrestrial globe is neither heavy nor light, as likewise all other globes of the universe. Heaviness to me (and I believe to Nature) is that innate tendency by which a body resists being moved from its natural place and by which, when forcibly removed therefrom, it spontaneously returns there. Thus a bucketful of water raised on high and set free, returns to the sea; but who will say that the same water remains heavy in the sea, when being set free there, does not move?

Final causes or intentions are the torment of modern philosophy, which neglects nothing to get rid of them. From this, among other things, comes its great axiom: nature creates only individuals. Indeed, since all classification supposes order, this philosophy has denied classes to deny order. In order to establish this marvellous reasoning, it fixes its suspicious eyes on the differences between beings to dispense itself from turning them to their similarities. It does not want to recognize that nuances between classes and individuals constitute another order, and that diversity in resemblance supposes intention more visibly than mere resemblance.