Plato is my friend - Aristotle is my friend - but my greatest friend is truth.

No matter how honest scientists think they are, they are still influenced by various unconscious assumptions that prevent them from attaining true objectivity. Expressed in a sentence, Fort's principle goes something like this: People with a psychological need to believe in marvels are no more prejudiced and gullible than people with a psychological need not to believe in marvels.

Positive philosophy made its counter-attack against critical rationalism on two fronts. Comte fought against the French form of negative philosophy, against the heritage of Descartes and the Enlightenment. In Germany, the struggle was directed against Hegel's system. Schelling received an express commission from Frederick William IV 'to destroy the dragon seed' of Hegelianism, while Stahl, another anti-Hegelian, became the philosophical spokesman of the Prussian monarchy in 1840.

The institution of religion exists only to keep mankind in order, and to make men merit the goodness of God by their virtue. Everything in a religion which does not tend towards this goal must be considered foreign or dangerous.

The true Enlightenment thinker, the true rationalist, never wants to talk anyone into anything. No, he does not even want to convince; all the time he is aware that he may be wrong. Above all, he values the intellectual independence of others too highly to want to convince them in important matters. He would much rather invite contradiction, preferably in the form of rational and disciplined criticism. He seeks not to convince but to arouse - to challenge others to form free opinions.

Most observers of the French Revolution, especially the clever and noble ones, have explained it as a life-threatening and contagious illness. They have remained standing with the symptoms and have interpreted these in manifold and contrary ways. Some have regarded it as a merely local ill. The most ingenious opponents have pressed for castration. They well noticed that this alleged illness is nothing other than the crisis of beginning puberty.

A man discovers what he is actually worth in this world when he faces society as a man, without money, name, or powerful connections, stripped of all but his native potentialities. He soon finds that nothing has less weight than his human qualities. They are prized so low that the market does not even list them. Strict science, which acknowledges man only as a biological concept, reflects man's lot in the actual world; in himself, man is nothing more than a member of a species. In the eyes of the world, the quality of humanity confers no title to existence, nay, not even a right of sojourn. Such title must be certified by special social circumstances stipulated in documents to be presented on demand.

The world is the house of the strong. I shall not know until the end what I have lost or won in this place, in this vast gambling den where I have spent more than sixty years, dicebox in hand, shaking the dice.

This means that no state, howsoever democratic its forms, not even the reddest political republic - a people's republic only in the sense of the lie known as popular representation - is capable of giving the people what they need: the free organization of their own interests from below upward, without any interference, tutelage, or coercion from above. That is because no state, not even the most republican and democratic, not even the pseudo-popular state contemplated by Marx, in essence represents anything but government of the masses from above downward, by an educated and thereby privileged minority which supposedly understands the real interests of the people better than the people themselves.

Once when Phocion had delivered an opinion which pleased the people,... he turned to his friend and said, "Have I not unawares spoken some mischievous thing or other?"

In the process of decision those alternatives are chosen which are considered to be appropriate means of reaching desired ends. Ends themselves, however, are often merely instrumental to more final objectives. We are thus led to the conception of a series, or hierarchy, of ends. Rationality has to do with the construction of means-ends chains of this kind.

Cease therefore to be dismayed by the mere novelty and so to reject reason from your mind with loathing: weigh the questions rather with keen judgment and if they seem to you to be true, surrender, or if the thing is false, gird yourself to the encounter.

Astronomy is perhaps the science whose discoveries owe least to chance, in which human understanding appears in its whole magnitude, and through which man can best learn how small he is.

So it is that after each night, facing a new day, the impossible necessity of dealing with it fills us with dread; exiled in light as if the world had just started, inventing the sun, we flee from tears-just one of which would be enough to wash us out of time.

The best and greatest winning is a true friend; and the greatest loss is the loss of time.

We dread the future only when we are not sure we can kill ourselves when we want to.

A clash of doctrines is not a disaster - it is an opportunity.

I like a church, I like a cowl, I love a prophet of the soul, And on my heart monastic aisles Fall like sweet strains or pensive smiles; Yet not for all his faith can see, Would I that cowled churchman be. Why should the vest on him allure, Which I could not on me endure?

One who liberates his country by killing a tyrant is to be praised and rewarded.

The Interpretation of the Laws of Nature in a Common-wealth, dependeth not on the books of Moral Philosophy. The Authority of writers, without the Authority of the Commonwealth, maketh not their opinions Law, be they never so true.

There is no need for you to develop an armed insurrection. Christ himself has already begun an insurrection with his mouth.

In these downbeat times, we need as much hope and courage as we do vision and analysis; we must accent the best of each other even as we point out the vicious effects of our racial divide and pernicious consequences of our maldistribution of wealth and power. We simply cannot enter the twenty-first century at each other's throats, even as we acknowledge the weighty forces of racism, patriarchy, economic inequality, homophobia, and ecological abuse on our necks. We are at a crucial crossroad in the history of this nation--and we either hang together by combating these forces that divide and degrade us or we hang separately. Do we have the intelligence, humor, imagination, courage, tolerance, love, respect, and will to meet the challenge? Time will tell. None of us alone can save the nation or world. But each of us can make a positive difference if we commit ourselves to do so.

On another possible world or another planet a word might be associated with much the same stereotype and much the same criteria as our term 'water', but it might designate XYZ and not H₂O. At least this could happen in a prescientific era. And it would not follow that XYZ was water; it would only follow that XYZ could look like water, taste like water, etc. What 'water' refers to depends on the actual nature of the paradigms, not just on what is in our heads.

A widow, the mother of a family, and from her heart she produces chords to which my whole being responds.

The ego involved in responsibility is me and no one else, me with whom one whould have liked to pair up a sister soul, from whom one would have substitution and sacrifice.

If a captive mind is unaware of being in prison, it is living in error. If it has recognized the fact, even for the tenth of a second, and then quickly forgotten it in order to avoid suffering, it is living in falsehood. Men of the most brilliant intelligence can be born, live and die in error and falsehood. In them, intelligence is neither a good, nor even an asset. The difference between more or less intelligent men is like the difference between criminals condemned to life imprisonment in smaller or larger cells. The intelligent man who is proud of his intelligence is like a condemned man who is proud of his large cell.

One cannot demand of a scholar that he show himself a scholar everywhere in society, but the whole tenor of his behavior must none the less betray the thinker, he must always be instructive, his way of judging a thing must even in the smallest matters be such that people can see what it will amount to when, quietly and self-collected, he puts this power to scholarly use.

Beware of thinkers whose minds function only when they are fueled by a quotation.

The imagination is not a talent of some men but is the health of every man.

Maman used to say that you can always find something to be happy about.

When he was asked what advantage had accrued to him from philosophy, his answer was, "The ability to hold converse with myself."

The mere word 'design' by itself has no consequences and explains nothing. It is the barrenest of principles. The old question of whether there is design is idle. The real question is what is the world, whether or not it have a designer - and that can be revealed only by the study of all nature's particulars.

They are splendidly built [Italian Hospitals], the best food and drink are at hand, the attendants are very diligent, the physicians are learned, the beds and coverings are very clean, and the bedsteads are painted. As soon as a sick man is brought in, all his clothes are taken off in the presence of a notary and are faithfully kept for him. He is then laid in a handsomely painted bed with clean sheets. Two physicians are fetched at once. Attendants come with food and drink, served in immaculate glass vessels; these are not touched with as much as a finger but are brought on a tray.

We cannot stem linguistic change, but we can drag our feet. If each of us were to defy Alexander Pope and be the last to lay the old aside, it might not be a better world, but it would be a lovelier language.

Judge not, and ye shall not be judged: condemn not, and ye shall not be condemned: forgive, and ye shall be forgiven: Give, and it shall be given unto you; good measure, pressed down, and shaken together, and running over, shall men give into your bosom. For with the same measure that ye mete withal it shall be measured to you again.

Human infirmity in moderating and checking the emotions I name bondage: for, when a man is a prey to his emotions, he is not his own master, but lies at the mercy of fortune: so much so, that he is often compelled, while seeing that which is better for him, to follow that which is worse.

If all things are in common among friends, the most precious is Wisdom. What can Juno give which thou canst not receive from Wisdom? What mayest thou admire in Venus which thou mayest not also contemplate in Wisdom? Her beauty is not small, for the lord of all things taketh delight in her. Her I have loved and diligently sought from my youth up.

Thrasyllus the Cynic begged a drachm of Antigonus. "That," said he, "is too little for a king to give." "Why, then," said the other, "give me a talent." "And that," said he, "is too much for a Cynic (or, for a dog) to receive."

But if it bee well considered, The praise of Ancient Authors, proceeds not from the reverence of the Dead, but from the competition and mutual envy of the Living.

There are very many people who read simply to prevent themselves from thinking.

If exclusive privileges were not granted, and if the financial system would not tend to concentrate wealth, there would be few great fortunes and no quick wealth. When the means of growing rich is divided between a greater number of citizens, wealth will also be more evenly distributed; extreme poverty and extreme wealth would be also rare.

The conception of the necessary unit of all that is resolves itself into the poverty of the imagination, and a freer logic emancipates us from the straitwaistcoated benevolent institution which idealism palms off as the totality of being.

A man may be in as just possession of Truth as of a City, and yet be forced to surrender.

To tell the truth, I couldn't care less about the relativity of knowledge, simply because the world does not deserve to be known.

If space in infinite, how about the space inside man? Blake said that eternity opens from the center of an atom. My former terror vanished. Now I saw that I was mistaken in thinking of myself as an object in a dead landscape. I had been assuming that man is limited because his brain is limited, that only so much can be packed into the portmanteau. But the spaces of the mind are a new dimension. The body is a mere wall between two infinities. Space extends to infinity outwards; the mind stretches to infinity inwards.

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

We are wont to call that human reasoning which we apply to Nature the anticipation of Nature (as being rash and premature) and that which is properly deduced from things the interpretation of Nature.

There is but one truly serious philosophical problem and that is suicide. Judging whether life is or is not worth living amounts to answering the fundamental question of philosophy. All the rest, whether or not the world has three dimensions, whether the mind has nine or twelve categories comes afterwards. These are games; one must first answer. And if it is true, as Nietzsche claims, that a philosopher, to deserve our respect, must preach by example, you can appreciate the importance of that reply, for it will precede the definitive act. These are facts the heart can feel; yet they call for careful study before they become clear to the intellect. If I ask myself how to judge that this question is more urgent than that, I reply that one judges by the actions it entails. I have never seen anyone die for the ontological argument. 

If the individual were no longer compelled to prove himself on the market, as a free economic subject, the disappearance of this kind of freedom would be one of the greatest achievements of civilization. The technological processes of mechanization and standardization might release individual energy into a yet uncharted realm of freedom beyond necessity. The very structure of human existence would be altered; the individual would be liberated from the work world's imposing upon him alien needs and alien possibilities. The individual would be free to exert autonomy over a life that would be his own.

The doctrine of the Second Coming teaches us that we do not and cannot know when the world drama will end. The curtain may be rung down at any moment: say, before you have finished reading this paragraph.