Nothing more strikingly betrays the credulity of mankind than medicine. Quackery is a thing universal, and universally successful. In this case it becomes literally true that no imposition is too great for the credulity of men.

No man is exempt from saying silly things; the mischief is to say them deliberately.

Spontaneous love can reach the point of despair, shows that it is in despair, that even when it is happy it loves with the power of despair.

No man can have society upon his own terms. If he seeks it, he must serve it too.

The right-minded man, ever inclined to righteous and lawful deeds, is joyous day and night, and strong, and free from care. But if a man take no heed of the right, and leave undone the things he ought to do, then will the recollection of no one of all his transgressions bring him any joy, but only anxiety and self-reproaching.

Is there anything we cannot contrive to call the demands of the times, and is there anything that does not acquire a certain prestige by being the demand of the times? But for decisive religious categories to become the demand for the times is eo ipso a contradiction. “The times” is too abstract a category to be able as claimant to demand the decisive religious categories that belong specifically to individuality and particularity; loud collective demands en mass for what can be shared only by the single individual in particularity, in solitariness, in silence, cannot be made. Two Ages: The Age of Revolution and the Present Age. A Literary Review.

In the old system, the body of the condemned man became the king's property, on which the sovereign left his mark and brought down the effects of his power. Now he will be rather the property of society, the object of a collective and useful appropriation.

There is no rule more invariable than that we are paid for our suspicions by finding what we suspect.

We see in tragedy the noblest men, after a long conflict and suffering, finally renounce forever all the pleasure of life and the aims till then pursued so keenly, or cheerfully and willingly give up life itself.

Indeed, if we consider the unblushing promises of reward and the staggering nature of the rewards promised in the Gospels, it would seem that Our Lord finds our desires, not too strong, but too weak. We are half-hearted creatures, fooling about with drink and sex and ambition when infinite joy is offered us, like an ignorant child who wants to go on making mud pies in a slum because he cannot imagine what is meant by the offer of a holiday at the sea. We are far too easily pleased.

It is not only when it takes the form of physical addiction that sex is evil. It is also evil when it manifests itself as a way of satisfying the lust for power or the climber's craving for position and social distinction.

Deep within every human being there still lives the anxiety over the possibility of being alone in the world, forgotten by God, overlooked among the millions and millions in this enormous household. One keeps this anxiety at a distance by looking at the many round about who are related to him as kin and friends, but the anxiety is still there, nevertheless, and one hardly dares think of how he would feel if all this were taken away.

There is no fate that can not be surmounted by scorn. If the descent is thus sometimes performed in sorrow, it can also take place in joy. This word is not too much. Again I fancy Sisyphus returning toward his rock, and the sorrow was in the beginning.

There as here, passions are the motive of all action, but they are livelier, more ardent, or merely simpler and purer, thereby assuming a totally different character. All the first movements of nature are good and right.

I asked my guide how it was possible the judicious part of them could suffer such incoherent prating? "We are obliged," said he, "to suffer it, because no one knows, when a brother rises up to hold forth, whether he will be moved by the spirit or by folly. In this uncertainty, we listen patiently to every one. We even allow our women to speak in public; two or three of them are often inspired at the same time, and then a most charming noise is heard in the Lord's house." "You have no priests, then?" said I. "No, no, friend," replied the Quaker; "heaven make us thankful!" Then opening one of the books of their sect, he read the following words in an emphatic tone: "'God forbid we should presume to ordain any one to receive the Holy Spirit on the Lord's day, in exclusion to the rest of the faithful!'

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!', but 'That's funny ...'

If you are not already dead, forgive. Rancor is heavy, it is worldly; leave it on earth: die light.

Verily I say unto you, All sins shall be forgiven unto the sons of men, and blasphemies wherewith soever they shall blaspheme: But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation. Mark 3:28-29 (KJV)

But more correctly: The fact that I use the word "hand" and all the other words in my sentence without a second thought, indeed that I should stand before the abyss if I wanted so much as to try doubting their meanings - shows that absence of doubt belongs to the essence of the language-game, that the question "How do I know..." drags out the language-game, or else does away with it.

Whether, then, all ought not immediately to discontinue and renounce it, with grief and abhorrence? Should not every society bear testimony against it, and account obstinate persisters in it bad men, enemies to their country, and exclude them from fellowship; as they often do for much lesser faults?

The principles of ethics come from our own nature as social, reasoning beings.

Fashion is the science of appearances, and it inspires one with the desire to seem rather than to be.

It is not altogether true that persuasion is one thing and force is another. Many forms of persuasion - even many of which everybody approves - are really a kind of force. Consider what we do to our children. We do not say to them: "Some people think the earth is round, and others think it is flat; when you grow up, you can, if you like, examine the evidence and form your own conclusion." Instead of this we say: "The earth is round." By the time our children are old enough to examine the evidence, our propaganda has closed their minds.

Nietzsche was the first to release the desire to know from the sovereignty of knowledge itself: to re-establish the distance and exteriority that Aristotle cancelled.

The more we devote ourselves to observing animals and their behaviour, the more we love them, on seeing how gready they care for their young; in such a context, we cannot even contemplate cruelty to a wolf. Leibnitz put the grub he had been observing back on the tree with its leaf, lest he should be guilty of doing any harm to it. It upsets a man to destroy such a creature for no reason, and this tenderness is subsequently transferred to man.

With Leibnitz the extent to which thoughts advance is the extent of the universe; where comprehension ceases, the universe ceases, and God begins: so that later it was even maintained that to be comprehended was derogatory to God, because He was thus degraded into finitude. In that procedure a beginning is made from the determinate, this and that are stated to be necessary; but since in the next place the unity of these moments is not comprehended, it is transferred to God. God is therefore, as it were, the waste channel into which all contradictions flow: Leibnitz's Théodicée is just a popular summing up such as this.

Man has three ways of acting wisely. First, on meditation; that is the noblest. Secondly, on imitation; that is the easiest. Thirdly, on experience; that is the bitterest.

No one is ignorant that there are two avenues by which opinions are received into the soul, which are its two principal powers: the understanding and the will.

"I don't want to! Why should I?" "Because more people will be happier if you do than if you don't." "So what? I don't care about other people." "You should." "But why?" "Because more people will be happier if you do than if you don't."

At the end of Being and Nothingness, ... Being in-itself and Being for-itself were of Being; and this totality of beings, in which they were effected, itself was linked up to itself, relating and appearing to itself, by means of the essential project of human-reality. What was named in this way, in an allegedly neutral and undetermined way, was nothing other than the metaphysical unity of man and God, the relation of man to God, the project of becoming God as the project constituting human-reality. Atheism changes nothing in this fundamental structure.

Moreover, there is a victory and defeat, the first and best of victories, the lowest and worst of defeat, which each man gains or sustains at the hands, not of another, but of himself; this shows that there is a war against ourselves going on within every one of us. Book I Sometimes paraphrased as "The first and best victory is to conquer self".

The truly good and wise man will bear all kinds of fortune in a seemly way, and will always act in the noblest manner that the circumstances allow.

The best life is the one in which the creative impulses play the largest part and the possessive impulses the smallest.

It belongs to the imperfection of everything human that man can only attain his desire by passing through its opposite.

He was often, and much beyond reason, provoked by my failures in cases where success could not have been expected; but in the main his method was right, and it succeeded. I do not believe that any scientific teaching ever was more thorough, or better fitted for training the faculties, than the mode in which logic and political economy were taught to me by my father. Striving, even in an exaggerated degree, to call forth the activity of my faculties, by making me find out everything for myself, he gave his explanations not before, but after, I had felt the full force of the difficulties; and not only gave me an accurate knowledge of these two great subjects, as far as they were then understood, but made me a thinker on both.

Nothing is so common as to imitate one's enemies, and to use their weapons.

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.

We still do not yet know where the drive for truth comes from. For so far we have heard only of the duty which society imposes in order to exist: to be truthful means to employ the usual metaphors. Thus, to express it morally, this is the duty to lie according to a fixed convention, to lie with the herd and in a manner binding upon everyone. Now man of course forgets that this is the way things stand for him. Thus he lies in the manner indicated, unconsciously and in accordance with habits which are centuries' old; and precisely by means of this unconsciousness and forgetfulness he arrives at his sense of truth.

Properly speaking, a man has as many social selves as there are individuals who recognise him.

It is a great mortification to the vanity of man, that his utmost art and industry can never equal the meanest of nature's productions, either for beauty or value. Art is only the under-workman, and is employed to give a few strokes of embellishment to those pieces, which come from the hand of the master.

This much is certain, the ERA OF REVOLUTION has now FAIRLY OPENED IN EUROPE once more. And the general state of affairs is good.

But plants, though they have not powers of perception, yet, as they have life, certainly approach very nearly to those things which are endowed with sentient faculties. What then is so completely insensible as stony substance? yet even in this, there appears to be a desire of union. Thus the loadstone attracts iron to it, and holds it fast in its embrace, when so attracted. Indeed, the attraction of cohesion, as a law of love, takes place throughout all inanimate nature.

On recent and contemporary literature [students'] need is least and our help least. They ought to understand it better than we, and if they do not then there is something radically wrong either with them or with the literature. But I need not labour the point. There is an intrinsic absurdity in making current literature a subject of academic study, and the student who wants a tutor's assistance in reading the works of his own contemporaries might as well ask for a nurse's assistance in blowing his own nose.

The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes. Therefore in medicine we ought to know the causes of sickness and health. And because health and sickness and their causes are sometimes manifest, and sometimes hidden and not to be comprehended except by the study of symptoms, we must also study the symptoms of health and disease. Now it is established in the sciences that no knowledge is acquired save through the study of its causes and beginnings, if it has had causes and beginnings; nor completed except by knowledge of its accidents and accompanying essentials. Of these causes there are four kinds: material, efficient, formal, and final.

He is dead, and my hatred has died with him.

Where there is friendship, there is our natural soil.

He who should teach men to die would at the same time teach them to live.

The method of not erring is sought by all the world. The logicians profess to guide it, the geometricians alone attain it, and apart from science, and the imitations of it, there are no true demonstrations.

Cornered vessel without corners, strange cornered vessel, strange cornered vessel.

Either we must have war against Russia, before she has the atom bomb, or we will have to lie down and let them govern us. ... Anything is better than submission.