Almost as soon as I began to study philosophy, I was impressed by the way in which philosophical problems appeared, disappeared, or changed shape, as a result of new assumptions or vocabularies.

The revolution, Stahl declared, is the 'world-historic mark of our age.' It would found 'the entire State on the will of man instead of on the commandment and ordinance of God.'

At the very beginning of my fevers and sicknesses that cast me down, whilst still entire, and but little, disordered in health, I reconcile myself to Almighty God by the last Christian, offices, and find myself by so doing less oppressed and more easy, and have got, methinks, so much the better of my disease. And I have yet less need of a notary or counsellor than of a physician.

One does not decide the truth of a thought according to whether it is right-wing or left-wing.

But it is better to assume principles less in number and finite, as Empedocles makes them to be. All philosophers... make principles to be contraries... (for Parmenides makes principles to be hot and cold, and these he demominates fire and earth) as those who introduce as principles the rare and the dense. But Democritus makes the principles to be the solid and the void; of which the former, he says, has the relation of being, and the latter of non-being. ...it is necessary that principles should be neither produced from each other, nor from other things; and that from these all things should be generated. But these requisites are inherent in the first contraries: for, because they are first, they are not from other things; and because they are contraries, they are not from each other.

Sunshine cannot bleach the snow, Nor time unmake what poets know.

Scientific theories are distinguished from myths... in being criticizable, and... open to modifications... They can be neither verified nor probabilified.

You must picture me alone in that room in Magdalen, night after night, feeling, whenever my mind lifted even for a second from my work, the steady, unrelenting approach of Him whom I so earnestly desired not to meet. That which I greatly feared had at last come upon me. In the Trinity Term of 1929 I gave in, and admitted that God was God, and knelt and prayed: perhaps, that night, the most dejected and reluctant convert in all England.

We have two bits of evidence about the Somebody. One is the universe He has made. If we used that as our only clue, I think we should have to conclude that He was a great artist (for the universe is a very beautiful place), but also that He is quite merciless and no friend to man (for the universe is a very dangerous and terrifying place.) ...The other bit of evidence is that Moral Law which He has put in our minds. And this is a better bit of evidence than the other, because it is inside information. You find out more about God from the Moral Law than from the universe in general just as you find out more about a man by listening to his conversation than by looking at a house he has built.

Faith exalts the human heart, by removing it from the market-place, making it sacred and unexchangeable. Under the jurisdiction of religion our deeper feelings are sacralized, so as to become raw material for the ethical life: the life lived in judgement.

The great god Pan is dead.

When a man is in a fair way and sees all life open in front of him, he seems to himself to make a very important figure in the world. His horse whinnies to him; the trumpets blow and the girls look out of window as he rides into town before his company; he receives many assurances of trust and regard--sometimes by express in a letter--sometimes face to face, with persons of great consequence falling on his neck. It is not wonderful if his head is turned for a time. But once he is dead, were he as brave as Hercules or as wise as Solomon, he is soon forgotten.

Sex also concentrates the mind wonderfully, and that is why civilised man is so obsessed by it. It enables him to "savour every fraction of an inch," not merely of the act of sexual intercourse, but of living itself. But that, of course, only underlines the basic problem: after coitus, "man becomes sad," because he quickly returns to his unconcentrated and defocused state. In sexual excitement, it is the spirit itself that becomes erect, and becomes capable of penetrating the meaning of life. Normal consciousness is limp and flaccid; its attitude towards reality is defensive. This is what Sartre called contingency, that feeling of being at the mercy of chance.

But the more he is alone with nature, the greater man and his doings bulk in the consideration of his fellow-men.

Boasting, like gilded armour, is very different inside from outside.

The teaching of my philosophy... that our whole existence is something which had better not have been, and that to disown and disclaim it is the highest wisdom.

Regarding the plan to collect my writings in volumes, I am quite cool and not at all eager about it because, roused by a Saturnian hunger, I would rather see them all devoured. For I acknowledge none of them to be really a book of mine, except perhaps the one On the Bound Will and the Catechism.

The critical ontology of ourselves has to be considered not, certainly, as a theory, a doctrine, nor even as a permanent body of knowledge that is accumulating; it has to be conceived as an attitude, an ethos, a philosophical life in which the critique of what we are is at one and the same time the historical analysis of the limits that are imposed on us and an experiment with the possibility of going beyond them.

There is a greatness in the lives of those who build up religious systems, a greatness in action, in idea and in self-subordination, embodied in instance after instance through centuries of growth. There is a greatness in the rebels who destroy such systems: they are the Titans who storm heaven, armed with passionate sincerity. It may be that the revolt is the mere assertion by youth of its right to its proper brilliance, to that final good of immediate joy. Philosophy may not neglect the multifariousness of the world - the fairies dance, and Christ is nailed to the cross.

No one commits suicide for external reasons, only because of inner disequilibrium. Under similar adverse circumstances, some are indifferent, some are moved, some are driven to suicide.

The Scientific discourse extracts truths from the errors which surround and oppose it on all sides and in every form; and, by demolition of these opposing views as error, and as impossible to true thought, shows the truth as that which alone remains after their withdrawal, and therefore as the only possible truth:--and in this separation of opposites, and elucidation of the truth from the confused chaos in which truth and error lie mingled together, consists the peculiar and characteristic nature of the Scientific discourse. This method creates and produces truth, before our eyes, out of a world full of error.

There are 80,000 prostitutes in London alone and what are they, if not bloody sacrifices on the altar of monogamy?

There is no passion so contagious as that of fear.

True science is distinctively the study of useless things. For the useful things will get studied without the aid of scientific men.

It is one of the chief skills of the philosopher not to occupy himself with questions which do not concern him.

All men are almost led to believe not of proof, but by attraction. This way is base, ignoble, and irrelevant; every one therefore disavows it. Each one professes to believe and even to love nothing but what he knows to be worthy of belief and love.

For an author to write as he speaks is just as reprehensible as the opposite fault, to speak as he writes; for this gives a pedantic effect to what he says, and at the same time makes him hardly intelligible.

The history of all hitherto existing society is the history of class struggles.

Every man is rich or poor according to the degree in which he can afford to enjoy the necessaries, conveniences, and amusements of human life. But after the division of labour has once thoroughly taken place, it is but a very small part of these with which a man's own labour can supply him. The far greater part of them he must derive from the labour of other people, and he must be rich or poor according to the quantity of that labour which he can command, or which he can afford to purchase. The value of any commodity, therefore, to the person who possesses it, and who means not to use or consume it himself, but to exchange it for other commodities, is equal to the quantity of labour which it enables him to purchase or command. Labour, therefore, is the real measure of the exchangeable value of all commodities.

Most men do not feel in themselves the competence required for leading their group to victory, and therefore seek out a captain who appears to possess the courage and sagacity necessary for the achievement of supremacy. Even in religion this impulse appears. Nietzsche accused Christianity of inculcating a slave-morality, but ultimate triumph was always the goal. "Blessed are the meek, for they shall inherit the earth."

In the past, there was a small leisure class and a larger working class. The leisure class enjoyed advantages for which there was no basis in social justice; this necessarily made it oppressive, limited its sympathies, and caused it to invent theories by which to justify its privileges.

When Nietzsche praises egoism it is always in an aggressive or polemical way, against the virtues, against the virtue of disinterestedness. But in fact egoism is a bad interpretation of the will, just as atomism is a bad interpretation of force. In order for there to be egoism it is necessary for there to be an ego.

"Here is the chalk." This is a truth; and here and the now hereby characterize the chalk so that we emphasize by saying; the chalk, which means "this." We take a scrap of paper and we write the truth down: "Here is the chalk." We lay this written statement beside the thing of which it is the truth. After the lecture is finished both doors are opened, the classroom is aired, there will be a draft, and the scrap of paper, let us suppose, will flutter out into the corridor. A student finds it on his way to the cafeteria, reads the sentence. "Here is the chalk," and ascertains that this is not true at all. Through the draft the truth has become an untruth. Strange that a truth should depend on a gust of wind. ... We have made the truth about the chalk independent of us and entrusted it to a scrap of paper.

The book of the world, so richly studied by autodidacts, is being closed by the "learned," who are raising walls of opinions to shut the world out.

Certain success evicts one from the paradise of winning against the odds.

We have to learn to think in a new way. We have to learn to ask ourselves, not what steps can be taken to give military victory to whatever group we prefer, for there no longer are such steps; the question we have to ask ourselves is: what steps can be taken to prevent a military contest of which the issue must be disastrous to all parties?

We know, that of all living beings man is the best formed, and, as the gods belong to this number, they must have a human form. ... I do not mean to say that the gods have body and blood in them; but I say that they seem as if they had bodies with blood in them. . . , Epicurus, for whom hidden things were as tangible as if he had touched them with his finger, teaches us that gods are not generally visible, but that they are intelligible; that they are not bodies having a certain solidity . . . but that we can recognize them by their passing images; that as there are atoms enough in the infinite space to produce such images, these are produced before us . . . and make us realize what are these happy, immortal beings.

There are uncertain truths - even true statements that we may take to be false - but there are no uncertain certainties. Since we can never know anything for sure, it is simply not worth searching for certainty; but it is well worth searching for truth; and we do this chiefly by searching for mistakes, so that we have to correct them.

Navigation brought man face to face with the uncertainty of destiny, where each is left to himself and every departure might always be the last. The madman on his crazy boat sets sail for the other world, and it is from the other world that he comes when he disembarks. This enforced navigation is both rigorous division and absolute Passage, serving to underline in real and imaginary terms the liminal situation of the mad in medieval society. It was a highly symbolic role, made clear by the mental geography involved, where the madman was confined at the gates of the cities. His exclusion was his confinement, and if he had no prison other than the threshold itself he was still detained at this place of passage. In a highly symbolic position he is placed on the inside of the outside, or vice versa. A posture that is still his today, if we admit that what was once the visible fortress of social order is now the castle of our own consciousness.

As for 'taking sides' - the choice, it seems to me, is no longer between two users of violence, two systems of dictatorship. Violence and dictatorship cannot produce peace and liberty; they can only produce the results of violence and dictatorship, results with which history has made us only too sickeningly familiar. The choice now is between militarism and pacifism. To me, the necessity of pacifism seems absolutely clear.

Philosophers do not claim that God does not know particulars; they rather claim that He does not know them the way humans do. God knows particulars as their Creator whereas humans know them as a privileged creations of God might know them.

The most important part of education - to teach the meaning of to know (in the scientific sense). The last statement in her notebook

Bad times have a scientific value. [...] We learn geology the morning after the earthquake, on ghastly diagrams of cloven mountains, upheaved plains, and the dry bed of the sea.

In reality, the law always contains less than the fact itself, because it does not reproduce the fact as a whole but only in that aspect of it which is important for us, the rest being intentionally or from necessity omitted.

Irons and the unbreathable air of this world strip us of everything, except the freedom to kill ourselves; and this freedom grants us a strength and pride to triumph over the loads which overwhelm us.

Hardness and softness, roughness and smoothness, moonlight and sunlight present themselves in our recollection not preeminently as sensory contents but as certain kinds of symbioses, certain ways outside has of invading us and certain ways we have of meets this invasion...

Economic man deals with the "real world" in all its complexity. Administrative man recognizes that the world he perceives is a drastic simplified model... He makes his choices using a simple picture of the situation that takes into account just a few of the factors that he regards as most relevant and crucial.

Saying that what we call our "selves" consist only of our bodies and that reason, soul, and love arise only from the body, is like saying that what we call our body is equivalent to the food that feeds the body. It is true that my body is only made up of digested food and that my body would not exist without food, but my body is not the same as food. Food is what the body needs for life, but it is not the body itself. The same thing is true of my soul. It is true that without my body there would not be that which I call my soul, but my soul is not my body. The soul may need the body, but the body is not the soul.