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

Luxurious food and drinks, in no way protect you from harm. Wealth beyond what is natural, is no more use than an overflowing container. Real value is not generated by theaters, and baths, perfumes or ointments, but by philosophy.

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.

Never say, and never take seriously anyone who says, "I cannot believe that so-and-so could have evolved by gradual selection". I have dubbed this kind of fallacy "the Argument from Personal Incredulity". Time and again, it has proven the prelude to an intellectual banana-skin experience.

Brother will betray brother to death, and a father his child. Children will even rise up against their parents and have them put to death.

The worker becomes all the poorer the more wealth he produces, the more his production increases in power and range. The worker becomes an ever cheaper commodity the more commodities he creates. With the increasing value of the world of things proceeds in direct proportion the devaluation of the world of men. Labour produces not only commodities; it produces itself and the worker as a commodity - and does so in the proportion in which it produces commodities generally.

Do not be guilty of possessing a library of learned books while lacking learning yourself.

My idea of heaven is, eating pâté de foie gras to the sound of trumpets.

All moral tradeoffs are messy. However, on some fairly modest ethical assumptions, when a severe and irreconcilable conflict of interests occurs, then the interests of the more sentient take precedence over the less sentient. This rule of thumb holds regardless of the age, race or species of the victim. Reply to "Why is David Pearce a vegan and a negative utilitarian given industrial agriculture's decimation of insect populations and, therefore, suffering the greater number of insects than farm animals? Shouldn't insects outweigh farm animals?

Time: That which man is always trying to kill, but which ends in killing him.

When we leave you and assemble together by ourselves, we talk freely about his sayings and doings, treating them with the respect which they deserve: in your presence deep silence is observed about him, and thus you lose that greatest of pleasures, the hearing the praises of your son, which I doubt not you would be willing to hand down to all future ages, had you the means of so doing, even at the cost of your own life.

What is obscene about pornography is not an excess of sex, but the fact that it contains no sex at all.

After logic we must proceed to philosophy proper. Here too we have to learn from our predecessors, just as in mathematics and law. Thus it is wrong to forbid the study of ancient philosophy. Harm from it is accidental, like harm from taking medicine, drinking water, or studying law.

The operations of understanding thus divide the world into numberless polarities, and Hegel uses the expression 'isolated reflection' (isolierte Reflection) to characterize the manner in which understanding forms and connects its polar concepts. The rise and spread of this kind of thinking Hegel connects with the origin and prevalence of crucial relationships in human life. The antagonisms of 'isolated reflections' express real antagonisms. .... Isolation and opposition are not, however, the final state of affairs. The world must not remain a complex of fixed disparates. The unity that underlies the antagonisms must be grasped and realized by reason, which has the task of reconciling the opposites and 'sublimating' them in a true unity.

The violence of love is as much to be dreaded as that of hate. When it is durable, it is serene and equable. Even its famous pains begin only with the ebb of love, for few are indeed lovers, though all would fain be.

In all chaos there is a cosmos, in all disorder a secret order.

We often have need of a profound philosophy to restore to our feelings their original state of innocence, to find our way out of the rubble of things alien to us, to begin to feel for ourselves and to speak ourselves, and I might almost say to exist ourselves. Even if my philosophy does not extend to discovering anything new, it does nevertheless possess the courage to regard as questionable what has long been thought true.

Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.

Anarchy, in its own nature, is an evil of short duration. The more horrible are the mischiefs it inflicts, the more does it hasten to a close.

Language steps in where the angels of experience fear to tread.

Woe to the book you can read without constantly wondering about the author!

This worthy man, whose nephew is still minister of Eskdalemuir (and author of a book on the Jews), proved the greatest blessing to that household. My father would, in any case, have saved himself. Of the other brothers, it may be doubted whether William Brown was not the primary preserver. They all learned to he masons from him, or from one another; instead of miscellaneous laborers and hunters, became regular tradesmen, the best in all their district, the skilfullest and faithfullest, and the best-rewarded every way. Except my father, none of them attained a decisive religiousness. But they all had prudence and earnestness, love of truth, industry, and the blessings it brings.

Only one thing matters: learning to be the loser.

The living force of his soul gained the day: on he passed far beyond the flaming walls of the world and traversed throughout in mind and spirit the immeasurable universe.

It is not that I am mad, it is only that my head is different from yours.

But how shall we expect charity towards others, when we are uncharitable to ourselves? Charity begins at home, is the voice of the world, yet is every man his greatest enemy, and as it were, his own executioner.

Only when the true ends of society have nothing to do with the sublime does "culture" become necessary as a veneer to cover over the void. Culture can at best appreciate the monuments of earlier faith; it cannot produce them.

Well is it known that ambition can creep as well as soar.

The defiance of established authority, religious and secular, social and political, as a world-wide phenomenon may well one day be accounted the outstanding event of the last decade.

What the public wants is the image of passion, not passion itself.

It shews the anxiety of the great men who influenced the conduct of affairs at that great event, to make the Revolution a parent of settlement, and not a nursery of future revolutions.

No one should try to live if he has not completed his training as a victim.

Few persons care to study logic, because everybody conceives himself to be proficient enough in the art of reasoning already. But I observe that this satisfaction is limited to one's own ratiocination and does not extend to that of other men. We come to the full possession of our power of drawing inferences the last of all our faculties, for it is not so much a natural gift as a long and difficult art.

Wit and good nature meeting in a fair young lady as they do in you make the best resemblance of an angel that we know; and he that is blessed with the conversation and friendship of a person so extraordinary enjoys all that remains of paradise in this world.

Here we must make one of those inductive applications of the law of continuity which have produced such great results in all of the positive sciences. We must extend the law of insistency into the future. Plainly, the insistency of a future idea with reference to the present is a quantity affected by the minus sign; for it is the present that affects the future, if there be any effect, not the future that affects the present.

As the mathematics are now understood, each branch - or, if you please, each problem, - is but the study of the relations of a collection of connected objects, without parts, without any distinctive characters, except their names or designating letters. These objects are commonly called points; but to remove all notion of space relations, it may be better to name them monads. The relations between these points are mere complications of two different kinds of elementary relations, which may be termed immediate connection and immediate non-connection. All the monads except as serve as intermediaries for the connections have distinctive designations.

There are two motives for reading a book: one, that you enjoy it; the other, that you can boast about it.

The old often envy the young; when they do, they are apt to treat them cruelly.

All violence consists in some people forcing others, under threat of suffering or death, to do what they do not want to do.

It is not, what a lawyer tells me I may do; but what humanity, reason, and justice, tell me I ought to do.

Now civilizations, I believe, come to birth and proceed to grow by successfully responding to successive challenges. They break down and go to pieces if and when a challenge confronts them which they fail to meet.

Boredom is like a pitiless zooming in on the epidermis of time. Every instant is dilated and magnified like the pores of the face.

The cause and root of nearly all evils in the sciences is this - that while we falsely admire and extol the powers of the human mind we neglect to seek for its true helps.

The deeper we look into nature, the more we recognize that it is full of life, and the more profoundly we know that all life is a secret and that we are united with all life that is in nature. Man can no longer live for himself alone. We realize that all life is valuable, and that we are united to all this life. From this knowledge comes our spiritual relationship to the universe.

Art can speak its own language only as long as the images are alive which refuse and refute the established order.

The venerability, reliability, and utility of truth is something which a person demonstrates for himself from the contrast with the liar, whom no one trusts and everyone excludes. As a "rational" being, he now places his behavior under the control of abstractions. He will no longer tolerate being carried away by sudden impressions, by intuitions.

Since Sputnik there is no Nature. Nature is an item contained in a man-made environment of satellites and information.