In summary, then, the set theoretic 'needs' of physics are surprisingly similar to the set theoretic needs of pure logic. Both disciplines need some set theory to function at all. Both disciplines can 'live' - but live badly - on the meager diet of only predicative sets. Both can live extremely happily on the rich diet of impredicative sets. Insofar, then, as the indispensability of quantification over sets is any argument for their existence - and we will discuss why it is in the next section - we may say that it is a strong argument for the existence of at least predicative sets, and a pretty strong, but not as strong, argument for the existence of impredicative sets.

But now we come to the real paradox: that something as explosive as sexual excitement can nevertheless become a matter of habit, But then that applies to all our pleasures. We discover some new product in the supermarket, and become addicted to it. Then our tastebuds become accustomed to its flavour, and or interest fades. In the same way a honeymoon couple may find an excuse to hurry off to the bedroom half a dozen times a day; but after a month or so sex has taken its place among the many routines of their lives. They still enjoy it, but it no longer has quite the same power to excite the imagination. Sex, like every other pleasure, can become mechanical.

I hate the world and almost all the people in it. I hate the Labour Congress and the journalists who send men to be slaughtered, and the fathers who feel a smug pride when their sons are killed, and even the pacifists who keep saying human nature is essentially good, in spite of all the daily proofs to the contrary. I hate the planet and the human race - I am ashamed to belong to such a species.

The highest perfection of human life consists in the mind of man being detached from care, for the sake of God.

The idea of living beings as subject to 'disease' includes a recognition of a Final Cause in organization; for disease is a state in which the vital forces do not attain their 'proper ends'.

The time would fail me if I were to recite all the big names in history whose exploits are perfectly irrational and even shocking to the business mind. The incongruity is speaking; and I imagine it must engender among the mediocrities a very peculiar attitude, towards the nobler and showier sides of national life.

A multitude is irreducible multiplicity; the singular social differences that constitute the multitude must always be expressed and can never be flattened into sameness, unity, identity, or indifference. ... the compact identities of factory workers in the dominant countries have been undermined with the rise of short-term contracts and forced mobility of new forms of work; how migration has challenged traditional notions of national identity; how family identity has changed and so forth.

The words that reverberate for us at the confines of this long adventure of rebellion are not formulas for optimism, for which we have no possible use in the extremities of our unhappiness, but words of courage and intelligence which, on the shores of the eternal seas, even have the qualities of virtue.

Nostalgia, more than anything, gives us the shudder of our own imperfection.

Every process pushed far enough tends to reverse or flip suddenly. Chiasmus - the reversal to process caused by increasing its speed, scope or size.

To the rational being only the irrational is unendurable, but the rational is endurable.

Unjust dominion cannot be eternal.

For each new class which puts itself in the place of one ruling before it, is compelled, merely in order to carry through its aim, to represent its interests the common interest of all the members of society, that is, sality, and represent them as the only rational, universally valid ones. The class making a revolution appears from the very start, if only because it is opposed to a class, not as a class but as the representative of the whole of society; it appears as the whole mass of society confronting the one ruling class.

I regard you with an indifference closely bordering on aversion.

Of America it would ill beseem any Englishman, and me perhaps as little as another, to speak unkindly, to speak unpatriotically, if any of us even felt so. Sure enough, America is a great, and in many respects a blessed and hopeful phenomenon. Sure enough, these hardy millions of Anglosaxon men prove themselves worthy of their genealogy... But as to a Model Republic, or a model anything, the wise among themselves know too well that there is nothing to be said... Their Constitution, such as it may be, was made here, not there... Cease to brag to me of America, and its model institutions and constitutions.

In our science and philosophy, even, there is commonly no true and absolute account of things. The spirit of sect and bigotry has planted its hoof amid the stars. You have only to discuss the problem, whether the stars are inhabited or not, in order to discover it.

I do not believe that science per se is an adequate source of happiness, nor do I think that my own scientific outlook has contributed very greatly to my own happiness, which I attribute to defecating twice a day with unfailing regularity.

That children dream not the first half year, that men dream not in some countries, with many more, are unto me sick men's dreams, dreams out of the Ivory gate, and visions before midnight.

The fall or scrapping of a cultural world puts us all into the same archetypal cesspool, engendering nostalgia for earlier conditions.

The rights of men to the use of land are not joint rights: they are equal rights. Were there only one man on earth, he would have a right to the use of the whole earth or any part of the earth. When there is more than one man on earth, the right to the use of land that any one of them would have, were he alone, is not abrogated: it is only limited. The right of each to the use of land is still a direct, original right, which he holds of himself, and not by the gift or consent of the others; but it has become limited by the similar rights of the others, and is therefore an equal right.

I am of course confident that I will fulfil my tasks as a writer in all circumstances - from my grave even more successfully and more irrefutably than in my lifetime. No one can bar the road to truth, and to advance its cause I am prepared to accept even death. But may it be that repeated lessons will finally teach us not to stop the writer's pen during his lifetime? At no time has this ennobled our history.

A fate is not a punishment.

All his life he [the American] jumps into the train after it has started and jumps out before it has stopped; and he never once gets left behind, or breaks a leg.

The question "cui bono" to what practical end and advantage do your researches tend? is one which the speculative philosopher who loves knowledge for its own sake, and enjoys, as a rational being should enjoy, the mere contemplation of harmonious and mutually dependent truths, can seldom hear without a sense of humiliation. He feels that there is a lofty and disinterested pleasure in his speculations which ought to exempt them from such questioning; communicating as they do to his own mind the purest happiness (after the exercise of the benevolent and moral feelings) of which human nature is susceptible, and tending to the injury of no one, he might surely allege this as a sufficient and direct reply to those who, having themselves little capacity, and less relish for intellectual pursuits, are constantly repeating upon him this enquiry.

Indulge in no wrathfulness, for a man when he indulges in wrath becomes then forgetful of his duty and good works . . . and sin and crime of every kind occur unto his mind, and until the subsiding of the wrath he is said to be just like Ahareman.

That which distinguishes the Christian narrow way from the common human narrow way is the voluntary. Christ was not someone who coveted earthly things but had to be satisfied with poverty, no, he chose poverty.

The criticism of the reformers was directed not so much at the weakness or cruelty of those in authority, as at a bad economy of power.

Freud's fanciful pseudo-explanations (precisely because they are brilliant) perform a disservice. (Now any ass has these pictures available to use in "explaining" symptoms of an illness).

One should attend to one's enemies, for they are the first persons to detect one's errors.

Silent listening unites a people and creates community without communication.

The specialist serves as a striking concrete example of the species, making clear to us the radical nature of the novelty. For, previously, men could be divided simply into the learned and the ignorant, those more or less the one, and those more or less the other. But your specialist cannot be brought in under either of these two categories. He is not learned , for he is formally ignorant of all that does not enter into his speciality; but neither is he ignorant, because he is "a scientist," and "knows" very well his own tiny portion of the universe. We shall have to say that he is a learned ignoramus, which is a very serious matter, as it implies that he is a person who is ignorant, not in the fashion of the ignorant man, but with an the petulance of one who is learned in his own special line.

Of all people, girls and servants are the most difficult to behave to. If you are familiar with them, they lose their humility. If you maintain a reserve towards them, they are discontented.

He that is not on my side is against me, and he that does not gather with me scatters.

Interface, of the resonant interval as 'where the action is', whether chemical, psychic or social, involves touch.

What is left when honor is lost?

There are two kinds of openness, the openness of indifference-promoted with the twin purposes of humbling our intellectual pride and letting us be whatever we want to be, just as long as we don't want to be knowers-and the openness that invites us to the quest for knowledge and certitude, for which history and the various cultures provide a brilliant array of examples for examination.

At root what is needed for scientific inquiry is just receptivity to data, skill in reasoning, and yearning for truth. Admittedly, ingenuity can help too.

Is there any knowledge in the world which is so certain that no reasonable man could doubt it?

Science seems to be at war with itself.... Naive realism leads to physics, and physics, if true, shows naive realism to be false. Therefore naive realism, if true, is false; therefore it is false.

Remember, then, that scientific thought is the guide of action; that the truth which it arrives at is not that which we can ideally contemplate without error, but that which we may act upon without fear; and you cannot fail to see that scientific thought is not an accompaniment or condition of human progress, but human progress itself. And for this reason the question what its characters are... is the question of all questions for the human race.

If you see a man who is unterrified in the midst of dangers, untouched by desires, happy in adversity, peaceful amid the storm, who looks down upon men from a higher plane, and views the gods on a footing of equality, will not a feeling of reverence for him steal over you, will you not say: "This quality is too great and too lofty to be regarded as resembling this petty body in which it dwells? A divine power has descended upon that man."

I do not believe that the source of value is unitary - displaying apparent multiplicity only in its application to the world. I believe that value has fundamentally different kinds of sources, and that they are reflected in the classification of values into types. Not all values represent the pursuit of some single good in a variety of settings.

How can he [today's writer] be honored, when he does not honor himself; when he loses himself in the crowd; when he is no longer the lawgiver, but the sycophant, ducking to the giddy opinion of a reckless public.

Truth is sought not because it is truth but because it is good.

I have seen something of the project of M. de St. Pierre, for maintaining a perpetual peace in Europe. I am reminded of a device in a cemetery, with the words: Pax perpetua; for the dead do not fight any longer: but the living are of another humor; and the most powerful do not respect tribunals at all. 

Living virtuously is equal to living in accordance with one's experience of the actual course of nature.