Every great study is not only an end in itself, but also a means of creating and sustaining a lofty habit of mind.

One might think that it must be quite clear to people not deprived of reason, that violence breeds violence; that the only means of deliverance from violence lies in not taking part in it. This method, one would think, is quite obvious. It is evident that a great majority of men can be enslaved by a small minority only if the enslaved themselves take part in their own enslavement. If people are enslaved, it is only because they either fight violence with violence or participate in violence for their own personal profit. Those who neither struggle against violence nor take part in it can no more be enslaved than water can be cut. They can be robbed, prevented from moving about, wounded or killed, but they cannot be enslaved: that is, made to act against their own reasonable will.

To explain all nature is too difficult a task for any one man or even for any one age. 'Tis much better to do a little with certainty, & leave the rest for others that come after you, than to explain all things by conjecture without making sure of any thing.

Let me never fall into the vulgar mistake of dreaming that I am persecuted whenever I am contradicted.

What would become of history, had we not a dependence on the veracity of the historian, according to the experience, what we have had of mankind?

All the excesses, all the violence, and all the vanity of great men, come from the fact that they know not what they are: it being difficult for those who regard themselves at heart as equal with all men... For this it is necessary for one to forget himself, and to believe that he has some real excellence above them, in which consists this illusion that I am endeavoring to discover to you.

The Law continues to exist and to function. But it no longer exists for me.

Surely if a single cell may, when subjected to certain influences, become a man in the space of twenty years; there is nothing absurd in the hypothesis that under certain other influences, a cell may, in the course of millions of years, give origin to the human race.

The deepest definition of youth is life as yet untouched by tragedy.

Ancient histories, as one of our wits has said, are but fables that have been agreed upon.

You could send your soul after the good you had expected, instead of turning it to the good you had got. You could refuse the real good; you could make the real fruit taste insipid by thinking of the other.

Among all my patients in the second half of life-that is to say, over thirty-five-there has not been one whose problem in the last resort was not that of finding a religious outlook on life. It is safe to say that every one of them fell ill because he had lost what the living religions of every age have given their followers, and none of them has been really healed who did not regain his religious outlook.

Dreams are the touchstones of our characters.

Being nimble and light-footed, his father encouraged him to run in the Olympic race. "Yes," said he, "if there were any kings there to run with me."

If you can speak what you will never hear, if you can write what you will never read, you have done rare things.

Society in shipwreck is a comfort to all.

The ceremonial (hot or cold) as opposed to the haphazard (lukewarm) characterizes piety.

Virtue is the same for a man and for a woman.

It is very likely that there are many, many planets carrying life, even intelligent life, throughout the universe, because there are so many stars. By sheer chance, even if those chances are small, a great many life forms and a great many intelligences may exist.

The severe Schools shall never laugh me out of the Philosophy of Hermes, that this visible world is but a picture of the invisible.

Our moral virtues benefit mainly other people; intellectual virtues, on the other hand, benefit primarily ourselves; therefore the former make us universally popular, the latter unpopular.

Barbusse has shown us that the Outsider is a man who cannot live in the comfortable, insulated world of the bourgeois, accepting what he sees and touches as reality.

The highest compact we can make with our fellow, is, - "Let there be truth between us two forevermore".

When we are the victims of illusion we do not feel it to be an illusion but a reality. It is the same perhaps with evil. Evil when we are in its power is not felt as evil but as a necessity, or even a duty.

The truth can wait, for she lives a long life.

Fear of evil is greater than the evil itself.

A person can perhaps succeed in hiding his sins from the world, he can perhaps be foolishly happy that he succeeds, or yet, a little more honest, admit that it is a deplorable weakness and cowardliness that he does not have the courage to become open-but a person cannot hide his sins from himself.

The light will not shame you, if it shows you your own ugliness, and that ugliness so offends you that you perceive the beauty of the light.

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.

There is one mistake we got to avoid, and that is the mistake of supposing that if you simulate it, you duplicate it. This is a deep mistake embedded in our popular culture - that simulation is equivalent to duplication, but of course it isn't. A perfect simulation of the brain - say, on a computer - would no longer thereby be conscious than a perfect simulation of a rainstorm on a weather-predicting computer will leave us all wet.

I think if I had met him [Lenin] without knowing who he was, I should not have guessed that he was a great man; he struck me as too opinionated and narrowly orthodox. His strength comes, I imagine, from his honesty, courage, and unwavering faith-religious faith in the Marxian gospel, which takes the place of the Christian martyr's hopes of Paradise, except that it is less egotistical... I went to Russia a Communist; but contact with those who have no doubts has intensified a thousandfold my own doubts, not as to Communism in itself, but as to the wisdom of holding a creed so firmly that for its sake men are willing to inflict widespread misery.

Transcendence constitutes selfhood.

Mysticism is just tomorrow's science dreamed today.

One can imagine a computer simulation of the action of peptides in the hypothalamus that is accurate down to the last synapse. But equally one can imagine a computer simulation of the oxidation of hydrocarbons in a car engine or the action of digestive processes in a stomach when it is digesting pizza. And the simulation is no more the real thing in the case of the brain than it is in the case of the car or the stomach. Barring miracles, you could not run your car by doing a computer simulation of the oxidation of gasoline, and you could not digest pizza by running the program that simulates such digestion. It seems obvious that a simulation of cognition will similarly not produce the effects of the neurobiology of cognition.

What a pity and what a poverty of spirit, to assert that beasts are machines deprived of knowledge and sentiment, which affect all their operations in the same manner, which learn nothing, never improve, &c. [...] Some barbarians seize this dog, who so prodigiously excels man in friendship, they nail him to a table, and dissect him living, to show the mezarian veins. You discover in him all the same organs of sentiment which are in yourself. Answer me, machinist, has nature arranged all the springs of sentiment in this animal that he should not feel? Has he nerves to be incapable of suffering? Do not suppose this impertinent contradiction in nature. [...] The animal has received those of sentiment, memory, and a certain number of ideas. Who has bestowed these gifts, who has given these faculties? He who has made the herb of the field to grow, and who makes the earth gravitate towards the sun.

Idleness is only fatal to the mediocre.

Listen to me: a family man is never a real family man. An assassin is never entirely assassin. They play a role, you understand. While a dead man, he is really dead. To be or not to be, right?

Broadly stated, the task is to replace the global rationality of economic man with a kind of rational behavior that is compatible with the access to information and the computational capacities that are actually possessed by organisms, including man, in the kinds of environments in which such organisms exist.

Those who believe that they are exclusively in the right are generally those who achieve something.

It is, in fact, far easier to act under conditions of tyranny than it is to think.

A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.

I believe that one can and must hope for a sane society that furthers man's capacity to love his fellow men, to work and create, to develop his reason and his objectivity of a sense of himself that is based on the experience of his productive energy. I believe that one can and must hope for the collective regaining of a mental health that is characterized by the capacity to love and to create...

There is a contrast of primary significance between Augustine and Pelagius. The former crushes everything in order to rebuild it again. The other addresses himself to man as he is. The first system, therefore, in respect to Christianity, falls into three stages: creation – the fall and a consequent condition of death and impotence; a new creation - whereby man is placed in a position where he can choose; and then, if he chooses - Christianity. The other system addresses itself to man as he is (Christianity fits into the world). From this is seen the significance of the theory of inspiration for the first system; from this also is seen the relationship between the synergistic and the semipelagian conflict. It is the same question, only that the syngeristic struggle has its presupposition in the new creation of the Augustinian system.

To live life well is to express life poorly; if one expresses life too well, one is living it no longer.

Foxes have their dens and birds have their nests, but human beings have no place to lay down and rest.

Art is the symbol of the two noblest human efforts: to construct and to refrain from destruction.

In conditions of private property ... "life-activity" stands in the service of property instead of property standing the service of free life-activity.

We have nothing to do but to receive, resting absolutely upon the merit, power, and love of our Redeemer.

God said, I am tired of kings, I suffer them no more; Up to my ear the morning brings The outrage of the poor.

A young man before he leaves the shelter of his father's house, and the guard of a tutor, should be fortify'd with resolution, and made acquainted with men, to secure his virtues, lest he should be led into some ruinous course, or fatal precipice, before he is sufficiently acquainted with the dangers of conversation, and his steadiness enough not to yield to every temptation.