If a man is offered a fact which goes against his instincts, he will scrutinize it closely, and unless the evidence is overwhelming, he will refuse to believe it. If, on the other hand, he is offered something which affords a reason for acting in accordance with his instincts, he will accept it even on the slenderest evidence. The origin of myths is explained in this way.

Buddhism calls anger "corruption of the mind," Manicheism "root of the tree of death." I know this, but what good does it do me to know?

I have been merely oppressed by the weariness and tedium and vanity of things lately: nothing stirs me, nothing seems worth doing or worth having done: the only thing that I strongly feel worth while would be to murder as many people as possible so as to diminish the amount of consciousness in the world. These times have to be lived through: there is nothing to be done with them.

My first advice (on how not to grow old) would be to choose you ancestors carefully. Although both my parents died young, I have done well in this respect as regards my other ancestors. My maternal grandfather, it is true, was cut off in the flower of his youth, at the age of sixty-seven, but my other three grandparents all lived to be over eighty. Of remoter ancestors I can only discover one who did not live to a great age, and he died of a disease which is now rare, namely, having his head cut off.

A just system must generate its own support.

If I knew that it was fated for me to be sick, I would even wish for it; for the foot also, if it had intelligence, would volunteer to get muddy.

We had nothing to say to one another, and while I was manufacturing my phrases I felt that earth was falling through space and that I was falling with it at a speed that made me dizzy.

I know that a Christian should be humble, but against the Pope I am going to be proud and say to him: "You, Pope, I will not have you for my boss, for I am sure that my doctrine is divine."

Don't get involved in partial problems, but always take flight to where there is a free view over the whole single great problem, even if this view is still not a clear one.

But Aversion wee have for things, not only which we know have hurt us; but also that we do not know whether they will hurt us, or not.

Cleanness of body was ever deemed to proceed from a due reverence to God.

Hope is the only good that is common to all men; those who have nothing else possess hope still.

The possibility of peace, on whose behalf many are working, might perhaps become actual because the technical advances in offensive weapons make the prospect of a European war so disastrous, and because, if the nations were at grips again, even the victorious aggressor would be ruined. But there still remains open the possibility of a new war which, more dreadful than any that have preceded it would make an end of contemporary Europeans.

The ideal of strictly scientific method in mathematics which I have tried to realise here, and which perhaps might be named after Euclid I should like to describe in the following way... The novelty of this book does not lie in the content of the theorems but in the development of the proofs and the foundations on which they are based... With this book I accomplish an object which I had in view in my Begriffsschrift of 1879 and which I announced in my Grundlagen der Arithmetik. I am here trying to prove the opinion on the concept of number that I expressed in the book last mentioned.

Insurrection ... never brings about the desired improvement. For insurrection lacks discernment; it generally harms the innocent more than the guilty. Hence, no insurrection is ever right, no matter how right the cause it seeks to promote.

Generosity is nothing else than a craze to possess. All which I abandon, all which I give, I enjoy in a higher manner through the fact that I give it away.... To give is to enjoy possessively the object which one gives.

I think He made one law of that kind in order that there might be obedience. In all these other matters what you call obeying Him is but doing what seems good in your eyes also. Is love content with that? You do them, indeed, because they are His will, but not only because they are his will. Where can you taste the joy of obeying unless he bids you do something for which His bidding is the only reason?

The king Frederic has sent me some of his dirty linen to wash; I will wash yours another time.

What is new in our time is the increased power of the authorities to enforce their prejudices.

Common sense doesn't have the last word in ethics or anywhere else, but it has, as J. L. Austin said about language, the first word: it should be examined before it is discarded.

Rules for Axioms. I. Not to omit any necessary principle without asking whether it is admittied, however clear and evident it may be. II. Not to demand, in axioms, any but things that are perfectly evident in themselves.

Parmenides: Whatever the subject of your hypothesis, if you suppose that it is or is not, or that it experiences any other affection, you must consider what happens to it and to any other particular things you may choose, and to a greater number and to all in the same way; and you must consider other things in relation to themselves and to anything else you may choose in any instance, whether you suppose that the subject of your hypothesis exists or does not exist, if you are to train yourself completely to see the truth perfectly.

The politician may change sides so frequently as to find himself always in the majority, but most politicians have a preference for one party to the other, and subordinate their love of power to this preference.

It is the privilege of true genius, and certainly of the genius that opens a new road, to make without punishment great mistakes.

... classic philosophy maintained that change, and consequently time, are marks of inferior reality, holding that true and ultimate reality is immutable and eternal. Human reasons, all too human, have given birth to the idea that over and beyond the lower realm of things that shift like the sands on the seashore there is the kingdom of the unchanging, of the complete, the perfect. The grounds for the belief are couched in the technical language of philosophy, but the grounds for the cause is the heart's desire for surcease from change, struggle, and uncertainty. The eternal and immutable is the consummation of mortal man's quest for certainty.

The Creation was the first act of sabotage.

The Autarch maintained his indifferent calm, but a certain lack of certainty was gathering, and he did not like to experience a lack of certainty. He liked nothing which made him aware of limitations. An Autarch should have no limitations, and on Lingane he had none that natural law did not impose.

In fact the opposition of instinct and reason is mainly illusory. Instinct, intuition, or insight is what first leads to the beliefs which subsequent reason confirms or confutes; but the confirmation, where it is possible, consists, in the last analysis, of agreement with other beliefs no less instinctive. Reason is a harmonising, controlling force rather than a creative one. Even in the most purely logical realms, it is insight that first arrives at what is new.

What's sauce for the gander is sauce for the goose.

There are, besides, eternal truths, such as Freedom, Justice, etc., that are common to all states of society. But Communism abolishes eternal truths, it abolishes all religion, and all morality, instead of constituting them on a new basis; it therefore acts in contradiction to all past historical experience.

The notion contradicts reality when the latter has become self-contradictory. Hegel says that a prevailing social form can be successfully attacked by thought only if this form has come into open contradiction with its own 'truth,' in other words, if it can no longer fulfill the demands of its own contents.

The fact that the general incidence of leukemia has doubled in the last two decades may be due, partly, to the increasing use of x-rays for numerous purposes. The incidence of leukemia in doctors, who are likely to be so exposed, is twice that of the general public. In radiologists the incidence is ten times greater.

The man of virtue makes the difficulty to be overcome his first business, and success only a subsequent consideration: this may be called perfect virtue.

True confessions are written with tears only. But my tears would drown the world, as my inner fire would reduce it to ashes.

In such a chain, too, or succession of objects, each part is caused by that which preceded it, and causes that which succeeds it. Where then is the difficulty? But the WHOLE, you say, wants a cause. I answer, that the uniting of these parts into a whole, like the uniting of several distinct countries into one kingdom, or several distinct members into one body, is performed merely by an arbitrary act of the mind, and has no influence on the nature of things. Did I show you the particular causes of each individual in a collection of twenty particles of matter, I should think it very unreasonable, should you afterwards ask me, what was the cause of the whole twenty. This is sufficiently explained in explaining the cause of the parts.

It is true that in the confessional it is the pastor who preaches; but the true preacher is still the secret-sharer in your inner being. The pastor can preach only in vague generalities; the preacher in your inner being is just the opposite; he speaks simply and solely about you, to you, and within you.

I long to be free - desperately free. Free as the stillborn are free.

It is, of course, clear that a country with a large foreign population must endeavour, through its schools, to assimilate the children of immigrants. It is, however, unfortunate that a large part of this process should be effected by means of a somewhat blatant nationalism.

Who dismisses his adulterous wife and marries another woman, whereas his first wife still lives, remains perpetually in the state of adultery. Such a man does not any efficacious penance while he refuses to abandon the new wife. If he is a catechumen, he cannot be admitted to baptism, because his will remains rooted in the evil. If he is a (baptized) penitent, he cannot receive the (ecclesiastical) reconciliation as long as he does not break with his bad attitude.

The truth is sum, ergo cogito - I am, therefore I think, although not everything that is thinks. Is not consciousness of thinking above all consciousness of being? Is pure thought possible, without consciousness of self, without personality? Can there exist pure knowledge without feeling, without that species of materiality which feelings lends to it? Do we not perhaps feel thought, and do we not feel ourselves in the act of knowing and willing? Could not the man in the stove [Descartes] have said: "I feel, therefore I am"? or "I will, therefore I am"? And to feel oneself, is it not perhaps to feel oneself imperishable?

...this our world, which is so real, with all its suns and milky ways is-nothing.

Look round and round the man you recommend, for yours will be the shame should he offend.

He was seized and dragged off to King Philip, and being asked who he was, replied, "A spy upon your insatiable greed."

It is necessary to insist upon this extraordinary but undeniable fact: experimental science has progressed thanks in great part to the work of men astoundingly mediocre, and even less than mediocre. That is to say, modern science, the root and symbol of our actual civilization, finds a place for the intellectually commonplace man and allows him to work therein with success.

How very paltry and limited the normal human intellect is, and how little lucidity there is in the human consciousness, may be judged from the fact that, despite the ephemeral brevity of human life, the uncertainty of our existence and the countless enigmas which press upon us from all sides, everyone does not continually and ceaselessly philosophize, but that only the rarest of exceptions do.

The first revolt is against the supreme tyranny of theology, of the phantom of God. As long as we have a master in heaven, we will be slaves on earth.

The mind enamored with deceptive things, declines things better.

In the electoral campaign, President Bush named as the most important person in his life Jesus. Now he has a unique chance to prove that he meant it seriously: for him, as for all Americans today, "Love thy neighbor!" means "Love the Muslims!" OR IT MEANS NOTHING AT ALL.

Plants are Children of the Earth; we are Children of the Æther. Our Lungs are properly our Root; we live, when we breathe; we begin our life with breathing.