That Man is the product of causes that had no prevision of the end they were achieving; that his origin, his growth, his hopes and fears, his loves and his beliefs, are but the outcome of accidental collocations of atoms; that no fire, no heroism, no intensity of thought and feeling, can preserve individual life beyond the grave; that all the labors of the ages, all the devotion, all the inspiration, all the noonday brightness of human genius, are destined to extinction in the vast death of the solar system, and that the whole temple of Man's achievement must inevitably be buried beneath the debris of a universe in ruins - all these things, if not quite beyond dispute, are yet so nearly certain that no philosophy which rejects them can hope to stand. Only within the scaffolding of these truths, only on the firm foundation of unyielding despair, can the soul's habitation henceforth be safely built.

The soul active sees absolute truth; and utters truth, or creates.

Do we write books so that they shall merely be read? Don't we also write them for employment in the household? For one that is read from start to finish, thousands are leafed through, other thousands lie motionless, others are jammed against mouseholes, thrown at rats, others are stood on, sat on, drummed on, have gingerbread baked on them or are used to light pipes.

There is no greater fallacy than the belief that aims and purposes are one thing, while methods and tactics are another, This conception is a potent menace to social regeneration. All human experience teaches that methods and means cannot be separated from the ultimate aim. The means employed become, through individual habit and social practice, part and parcel of the final purpose; they influence it, modify it, and presently the aims and means become identical.

There are three principal means of acquiring knowledge available to us: observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination. Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined; and for this reason, creative geniuses are not common.

Books ... hold within them the gathered wisdom of humanity, the collected knowledge of the world's thinkers, the amusement and excitement built up by the imaginations of brilliant people. Books contain humor, beauty, wit, emotion, thought, and, indeed, all of life. Life without books is empty.

Envy has been, is, and shall be, the destruction of many. What is there, that Envy hath not defamed, or Malice left undefiled? Truly, no good thing.

Ethics seems a morass which we have to cross, but get hopelessly bogged in when we make the attempt.

The first premise of all human history is, of course, the existence of living human individuals. Thus the first fact to be established is the physical organisation of these individuals and their consequent relation to the rest of nature.

This fact, that the opposite of sin is by no means virtue, has been overlooked. The latter is partly a pagan view, which is content with a merely human standard, and which for that very reason does not know what sin is, that all sin is before God. No, the opposite of sin is faith.

Blessed are those who have no talent!

I am particularly grateful to Nozick for his unfailing help and encouragement during the last stages.

To repeat to yourself a thousand times a day: 'Nothing on Earth has any worth,' to keep finding yourself at the same point, to circle stupidly as a top, eternally...

Important though the general concepts and propositions may be with which the modern industrious passion for axiomatizing and generalizing has presented us, in algebra perhaps more than anywhere else, nevertheless I am convinced that the special problems in all their complexity constitute the stock and core of mathematics; and to master their difficulties requires on the whole the harder labor.

We took the liberty to make some enquiries concerning the ground of their pretentions to make war upon nations who had done them no injury, and observed that we considered all mankind as our friends who had done us no wrong, nor had given us any provocation.

Things that have a common quality ever quickly seek their kind.

Middle age begins with marriage; for then work and responsibility replace carefree play, passion surrenders to the limitations of social order, and poetry yields to prose.

The deepest thinking is humble. It is only concerned that the flame of truth which it keeps alive should burn with the strongest and purest heat; it does not trouble about the distance to which its brightness penetrates.

"No man in this fashionable London of yours," friend Sauerteig would say, "speaks a plain word to me. Every man feels bound to be something more than plain; to be pungent withal, witty, ornamental. His poor fraction of sense has to be perked into some epigrammatic shape, that it may prick into me;-perhaps (this is the commonest) to be topsyturvied, left standing on its head, that I may remember it the better! Such grinning inanity is very sad to the soul of man. Human faces should not grin on one like masks; they should look on one like faces! I love honest laughter, as I do sunlight; but not dishonest: most kinds of dancing too; but the St.-Vitus kind not at all! A fashionable wit, ach Himmel, if you ask, Which, he or a Death's- head, will be the cheerier company for me? pray send not him!"

It is experience, rather than understanding, that influences behaviour.

The kingdom of heaven can be compared to a king who wanted to settle accounts with his slaves.

You don't have a soul. You are a soul. You have a body.

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

Monopoly of one kind or another, indeed, seems to be the sole engine of the mercantile system.

It is terrible when people do not know God, but it is worse when people identify as God what is not God.

Saying is one thing, doing another.

This, therefore, is mathematics: she reminds you of the invisible form of the soul; she gives life to her own discoveries; she awakens the mind and purifies the intellect; she brings light to our intrinsic ideas; she abolishes oblivion and ignorance which are ours by birth.

To become properly acquainted with a truth, we must first have disbelieved it, and disputed against it.

But the philosophy that killed off truth proclaims unlimited tolerance for the "language games" (i.e., opinions, beliefs and doctrines) that people find useful. The outcome is expressed in the words of Karl Kraus: "Alles ist wahr und auch das Gegenteil." "Everything is true, and also its opposite."

The fact that labour is external to the worker, i.e., it does not belong to his intrinsic nature; that in his work, therefore he does not affirm himself but denies himself, does not feel content but unhappy, does not develop freely his physical and mental energy but mortifies his body and his mind. The worker therefore only feels himself outside his work, and in his work feels outside himself.

Invention is the mother of all necessities.

Do not imagine that there is any bird more easily caught by decoy, nor any fish sooner fixed on the hook by wormy bait, than are all these poor fools neatly tricked into servitude by the slightest feather passed, so to speak, before their mouths. Truly it is a marvelous thing that they let themselves be caught so quickly at the slightest tickling of their fancy. Plays, farces, spectacles, gladiators, strange beasts, medals, pictures, and other such opiates, these were for ancient peoples the bait toward slavery, the price of their liberty, the instruments of tyranny. By these practices and enticements the ancient dictators so successfully lulled their subjects under the yoke, that the stupefied peoples, fascinated by the pastimes and vain pleasures flashed before their eyes, learned subservience as naïvely, but not so creditably, as little children learn to read by looking at bright picture books.

All the measures now proposed are only a compromise with the errors of the present systems; but as these errors now almost universally exist, and must be overcome solely by the force of reason; and as reason, to effect the most beneficial purposes, makes her advance by slow degrees, and progressively substantiates one truth of high import after another, it will be evident, to minds of comprehensive and accurate thought, that by these and similar compromises alone can success be rationally expected in practice. For such compromises bring truth and error before the public; and whenever they are fairly exhibited together, truth must ultimately prevail.

It would be foolish to assert that there is no power above mine. Only the attitude that I take toward it will be quite another than that of the religious age: I shall be the enemy of every higher power, while religion teaches us to make it our friend and be humble toward it.

What most astonishes me in the United States, is not so much the marvelous grandeur of some undertakings, as the innumerable multitude of small ones.

All for ourselves, and nothing for other people, seems, in every age of the world, to have been the vile maxim of the masters of mankind.

I have never in my life met a man like him for noble simplicity, and boundless truthfulness. I understood from the way he talked that anyone who chose could deceive him, and that he would forgive anyone afterwards who had deceived him, and that was why I grew to love him.

Technical progress and more comfortable living permit the systematic inclusion of libidinal components into the realm of commodity production and exchange. But no matter how controlled the mobilization of instinctual energy may be (it sometimes amounts to a scientific management of libido), no matter how much it may serve as a prop for the status quo-it is also gratifying to the managed individuals, just as racing the outboard motor, pushing the power lawn mower, and speeding the automobile are fun.

It happens as with cages: the birds without despair to get in, and those within despair of getting out.

A man who has never been within the tropics does not know what a thunderstorm means; a man who has never looked on Niagara has but a faint idea of a cataract; and he who has not read Barère's Memoirs may be said not to know what it is to lie.

Existentialism is nothing else but an attempt to draw the full conclusions from a consistently atheistic position. Its intention is not in the least that of plunging men into despair. And if by despair one means as the Christians do - any attitude of unbelief, the despair of the existentialists is something different. Existentialism is not atheist in the sense that it would exhaust itself in demonstrations of the non-existence of God. It declares, rather, that even if God existed that would make no difference from its point of view. Not that we believe God does exist, but we think that the real problem is not that of His existence; what man needs is to find himself again and to understand that nothing can save him from himself, not even a valid proof of the existence of God. In this sense existentialism is optimistic. It is a doctrine of action, and it is only by self-deception, by confining their own despair with ours that Christians can describe us as without hope.

Perhaps misguided moral passion is better than confused indifference.

Again and again our foe, religion, has given birth to deeds sinful and unholy.

We are all made for mutual assistance, as the feet, the hands, and the eyelids, as the rows of the upper and under teeth, from whence it follows that clashing and opposition is perfectly unnatural.