There can be no revolution without widespread and passionate destruction, a destruction salutary and fruitful precisely because out of it, and by means of it alone, new worlds are born and arise.

A robot may not injure a human being, or, through inaction, allow a human being to come to harm.

Man desires to praise thee, for he is a part of thy creation; he bears his mortality about with him and carries the evidence of his sin and the proof that thou dost resist the proud. Still he desires to praise thee, this man who is only a small part of thy creation. Thou hast prompted him, that he should delight to praise thee, for thou hast made us for thyself and restless is our heart until it comes to rest in thee.

When you are criticising the philosophy of an epoch, do not chiefly direct your attention to those intellectual positions which its exponents feel it necessary explicitly to defend. There will be some fundamental assumptions which adherents of all the variant systems within the epoch unconsciously presuppose. Such assumptions appear so obvious that people do not know what they are assuming because no other way of putting things has ever occurred to them. With these assumptions a certain limited number of types of philosophic systems are possible, and this group of systems constitutes the philosophy of the epoch.

One should be wary of assuming that we're the folk who can properly look after ourselves, whereas our descendants, if they become genetically pre-programmed ecstatics, will get trapped in robot-serviced states of infantile dependence. For it shouldn't be forgotten that exuberantly happy people also have a fierce will to survive. They love life dearly. They take on daunting challenges against seemingly impossible odds. One of the hallmarks of many endogenous depressive states, on the other hand, is so-called behavioural despair. If one learns that apparently no amount of effort can rescue one from an aversive stimulus, then one tends to sink into a lethargic stupor. This syndrome of "learned helplessness" may persist even when the opportunity to escape from the nasty stimulus subsequently arises.

Let us pardon him his hope of a vain apocalypse, and of a second coming in great triumph upon the clouds of heaven. Perhaps these were the errors of others rather than his own; and if it be true that he himself shared the general illusion, what matters it, since his dream rendered him strong against death, and sustained him in a struggle to which he might otherwise have been unequal?

Hereby it is manifest, that during the time men live without a common Power to keep them all in awe, they are in that conditions called Warre; and such a warre, as is of every man, against every man.

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

Rats and roaches live by competition under the laws of supply and demand; it is the privilege of human beings to live under the laws of justice and mercy.

What has philosophy got to do with measuring anything? It's the mathematicians you have to trust, and they measure the skies like we measure a field.

Hope is the dream of a waking man.

An utterance can have Intentionality, just as a belief has Intentionality, but whereas the Intentionality of the belief is intrinsic the Intentionality of the utterance is derived.

Wish not the thing, which thou mayest not obtain!

The religion and philosophy of the Hebrews are those of a wilder and ruder tribe, wanting the civility and intellectual refinements and subtlety of Vedic culture.

A true prayer and religious reconciling of ourselves to Almighty God cannot enter into an impure soul, subject at the very time to the dominion of Satan. He who calls God to his assistance whilst in a course of vice, does as if a cut-purse should call a magistrate to help him, or like those who introduce the name of God to the attestation of a lie.

Be not swept off your feet by the vividness of the impression, but say, "Impression, wait for me a little. Let me see what you are and what you represent. Let me try you."

Abstain from animals.

It is your concern when your neighbor's wall is on fire.

I understand Being in all and over all, as there is nothing without participation in Being, and there is no being without Essence. Thus nothing can be free of the Divine Presence.

The difference between the most dissimilar characters, between a philosopher and a common street porter, for example, seems to arise not so much from nature, as from habit, custom, and education.

Cato instigated the magistrates to punish all offenders, saying that they that did not prevent crimes when they might, encouraged them. Of young men, he liked them that blushed better than those who looked pale.

Yet the hour of emancipation is advancing, in the march of time. It will come.

The welfare of the people in particular has always been the alibi of tyrants, and it provides the further advantage of giving the servants of tyranny a good conscience. It would be easy, however, to destroy that good conscience by shouting to them: if you want the happiness of the people, let them speak out and tell what kind of happiness they want and what kind they don't want! But, in truth, the very ones who make use of such alibis know they are lies; they leave to their intellectuals on duty the chore of believing in them and of proving that religion, patriotism, and justice need for their survival the sacrifice of freedom.

And if he be too forward to venture upon his own strength and skill, and perplexity and trouble of a misadventure now and then, that reaches not his innocence, his health, or reputation, may not be an ill way to teach him more caution.

Be cheerful while you are alive.

...it won't just be the quality and quantity of consciousness in the world that will be transformed in the post-Darwinian Transition. As (post-)humanity emerges from the neurochemical Dark Ages, enriched dopaminergic function in particular may sharpen the sheer intensity and meaningfulness of every moment of conscious existence. For a generation whose lifetimes span both modes of awareness, it will be as if they had just woken up. They will feel they had hitherto been sleep-walking through life in a twilit stupor. Thereafter their former mundane and minimal existence may be recalled only as some kind of zombified trance-state whose nature they were physiologically incapable of recognising...

It is not easy for any of us to stop measuring the world against the standard of Europe, but the concept of the multitude requires it of us. It is a challenge. Embrace it.

Man is a born geometer. Even when he is expressing himself in curves, as he has done in the undulating roofs of Eastern Asia and in the flowing sculptures at Borobudur, his lines follow mathematical laws that are unknown to Nature; and he is frankly defying her when he works in rectangles. Angkor is perhaps the greatest of Man's essays in rectangular architecture that has yet been brought to light... The Buddhist stupa at Borobudur in Central Java is a lyric poem in stone, flowing round the crown of a hill to the musical accompaniment of a jagged mountain range on one side and a green expanse of rice fields on the other. Angkor is not orchestral; it is monumental. It is an epic poem which makes its effect, like the Odyssey and like Paradise Lost, by the grandeur of its structure as well as by the beauty of the details. Angkor is an epic in rectangular forms imposed upon the Cambodian jungle.

I have always thought that clarity is a form of courtesy that the philosopher owes; moreover, this discipline of ours considers it more truly a matter of honor today than ever before to be open to all minds ... This is different from the individual sciences which increasingly [interpose] between the treasure of their discoveries and the curiosity of the profane the tremendous dragon of their closed terminology.

There is nothing disastrous in the temporary nature of our ideas. They are always that. But there may very easily be a train of evil in the self-deception which regards them as final. I think God will forgive us our skepticism sooner than our Inquisitions.

Our language can be seen as an ancient city: a maze of little streets and squares, of old and new houses, and of houses with additions from various periods; and this surrounded by a multitude of new boroughs with straight regular streets and uniform houses.

The truth can be spoken only by someone who is already at home in it; not by someone who still lives in untruthfulness, and does no more than reach out towards it from within untruthfulness.

Nay, men, if any of you had heeded what I was ever foretelling and advising, ye would now neither be fearing a single man nor putting your hopes in a single man.

Criticism actually says: You must free your I so completely from all limitations that it becomes a human I. I say: Free yourself as far as you can, and you have done your part; because it is not given to everyone to break through all limits, or, more eloquently: that is not a limit for everyone which is one to the others. Consequently, don't exhaust yourself on the limits of others; it's enough if you tear down your own. Who has ever been able to break down even one limit for all people? Aren't countless people today, as at all times, running around with all the "limitations of humanity"? One who overturns one of his limits may have shown others the way and the means; the overturning of their limits remains their affair.

I have twice gone fishing with rod and line just because other boys asked me to, but this sport was soon made impossible for me by the treatment of the worms that were put on the hook for bait, and the wrenching of the mouths of the fishes that were caught. I gave it up, and even found courage enough to dissuade other boys from going.

If it is in our power to prevent something bad from happening, without thereby sacrificing anything of comparable moral importance, we ought, morally, to do it.

I think that New York is not the cultural center of America, but the business and administrative center of American culture.

I cannot contribute anything to this world because I only have one method: agony.

All that is harmony for you, my Universe, is in harmony with me as well. Nothing that comes at the right time for you is too early or too late for me. Everything is fruit to me that your seasons bring, Nature. All things come of you, have their being in you, and return to you.

The only non-Christians who seemed to me really to know anything were the Romantics; and a good many of them were dangerously tinged with something like religion, even at times with Christianity. The upshot of it all could nearly be expressed in a perversion of Roland's great line in the Chanson: 'Christians are wrong, but all the rest are bores.'

The criterion of truth is that it works even if nobody is prepared to acknowledge it.

A slight sound at evening lifts me up by the ears, and makes life seem inexpressibly serene and grand. It may be Uranus, or it may be in the shutter.

I shall have to test the theory of my father Parmenides, and contend forcibly that after a fashion not-being is and on the other hand in a sense being is not. For unless these statements are either disproved or accepted, no one who speaks about false words, or false opinion whether images or likenesses or imitations or appearances about the arts which have to do with them, can ever help being forced to contradict himself and make himself ridiculous.

Architecture worth great attention. As we double our numbers every 20 years we must double our houses. Besides we build of such perishable materials that one half of our houses must be rebuilt in every space of 20 years. So that in that term, houses are to be built for three fourths of our inhabitants. It is then among the most important arts: and it is desireable to introduce taste into an art which shews so much.

Men are what their mothers made them.