It requires twenty years for a man to rise from the vegetable state in which he is within his mother's womb, and from the pure animal state which is the lot of his early childhood, to the state when the maturity of reason begins to appear. It has required thirty centuries to learn a little about his structure. It would need eternity to learn something about his soul. It takes an instant to kill him.

If things emerged from a spaceship which we could not be sure were machines or conscious beings, what we were wondering about would have an answer even if the things were so different from anything we were familiar with that we could never discover it. It would depend on whether there was something it was like to be them, not on whether behavioral similarities warranted our saying so. ... [W]e need ... to ask whether experience is present in [the] alien thing[s], ... whether there is something it is like to be them, and ... the answer to that question is what determines whether they are conscious.

If a man has reported to you, that a certain person speaks ill of you, do not make any defense (answer) to what has been told you: but reply, The man did not know the rest of my faults, for he would not have mentioned these only.

As the mathematics are now understood, each branch - or, if you please, each problem, - is but the study of the relations of a collection of connected objects, without parts, without any distinctive characters, except their names or designating letters. These objects are commonly called points; but to remove all notion of space relations, it may be better to name them monads. The relations between these points are mere complications of two different kinds of elementary relations, which may be termed immediate connection and immediate non-connection. All the monads except as serve as intermediaries for the connections have distinctive designations.

Plagued by Western habits of either-or, dualistic thinking, we all may fail to understand that race, class and gender interconnect to sustain a corporate ruling class. In the language of African-American essayist bell hooks, they are interlocking systems of oppression. Neither Latina nor Anglo women should yield to the temptation of making a hierarchy of oppressions where battles are fought over whether racism is "worse" than sexism, or class oppression is "deeper" than racism, etc. Instead of hierarchies we need bridges which, after all, exist to make two ends meet.

As to the having and possessing of things, teach them to part with what they have, easily and freely to their friends, and let them find by experience that the most liberal has always the most plenty, with esteem and commendation to boot, and they will quickly learn to practise it.

Once in his early youth a man allowed himself to be so far carried away in an overwrought irresponsible state as to visit a prostitute. It is all forgotten. Now he wants to get married. Then anxiety stirs. He is tortured day and night with the thought that he might possibly be a father, that somewhere in the world there could be a created being who owed his life to him. He cannot share his secret with anyone; he does not even have any reliable knowledge of the fact. –For this reason the incident must have involved a prostitute and taken place in the wantonness of youth; had it been a little infatuated or an actual seduction, it would be hard to imagine that he could know nothing about it, but now this this very ignorance is the basis of his agitated torment. On the other hand, precisely because of the rashness of the whole affair, his misgivings do not really start until he actually falls in love.

Death is the only thing we haven't succeeded in completely vulgarizing.

Of course I base my characters partly on the people I know-one can't escape it-but fictional characters are oversimplified; they're much less complex than the people one knows.

The subversive character of truth inflicts upon thought an imperative quality. Logic centers on judgments which are, as demonstrative propositions, imperatives, - the predicative "is" implies an "ought." ... Verification of the proposition involves a process in fact as well as in thought: (S) must become that which it is. The categorical statement thus turns into a categorical imperative; it does not state a fact but the necessity to bring about a fact. For example, it could be read as follows: man is not (in fact) free, endowed with inalienable rights, etc., but he ought to be.

I wish to propose for the reader's favourable consideration a doctrine which may, I fear, appear wildly paradoxical and subversive. The doctrine in question is this: that it is undesirable to believe a proposition when there is no ground whatever for supposing it true.

The universe is what it is, not what I choose that it should be.

Happiness is the proof that time can accommodate eternity.

One Folk, One Realm, One Leader. Union with the unity of an insect swarm. Knowledgeless understanding of nonsense and diabolism. And then the newsreel camera had cut back to the serried ranks, the swastikas, the brass bands, the yelling hypnotist on the rostrum. And here once again, in the glare of his inner light, was the brown insectlike column, marching endlessly to the tunes of this rococo horror-music. Onward Nazi soldiers, onward Christian soldiers, onward Marxists and Muslims, onward every chosen People, every Crusader and Holy War-maker. Onward into misery, into all wickedness, into death!

Being is only Being for Dasein.

Both dreams and myths are important communications from ourselves to ourselves. If we do not understand the language in which they are written, we miss a great deal of what we know and tell ourselves in those hours when we are not busy manipulating the outside world.

Society should treat all equally well who have deserved equally well of it, that is, who have deserved equally well absolutely. This is the highest abstract standard of social and distributive justice; towards which all institutions, and the efforts of all virtuous citizens, should be made in the utmost degree to converge.

At my age one's got to be sincere. Lying's too much effort.

Let us have the candor to acknowledge that what we call "the economy" or "the free market" is less and less distinguishable from warfare. For about half of the last century, we worried about world conquest by international communism. Now with less worry (so far) we are witnessing world conquest by international capitalism. Though its political means are milder (so far) than those of communism, this newly internationalized capitalism may prove even more destructive of human cultures and communities, of freedom, and of nature. Its tendency is just as much toward total dominance and control.

I disclose my mysteries to those who are worthy of my mysteries.

When the Indians complain that the English have enslaved them it is as if drunkards complained that the spirit-dealers who have settled among them have enslaved them. You tell them that they might give up drinking, but they reply that they are so accustomed to it that they cannot abstain, and that they must have alcohol to keep up their energy. Is it not the same thing with the millions of people who submit to thousands or even to hundreds, of others - of their own or other nations? If the people of India are enslaved by violence it is only because they themselves live and have lived by violence, and do not recognize the eternal law of love inherent in humanity.

Now, obviously, the human race is on the point of an extremely interesting evolutionary development. The first step towards escape from this vicious circle is to recognize that the apparent "ordinariness" of the world is a delusion. If we could become deeply and permanently convinced that the world "out there" is endlessly exciting, we would never again allow ourselves to become trapped in the swamp of "taken-for-grantedness". And we would become practically unkillable. Shaw says of his "Ancients" in Back to Methuselah "Even in the moment of death, their life does not fail them". "Life failure" is that feeling that there is nothing new under the sun, and that we all have to accept defeat in the end. If we could learn the mental trick of causing the dynamo to accelerate, this illusion would never again be able to exert its power over us.

It is not enough for a wise man to study nature and truth; he should dare state truth for the benefit of the few who are willing and able to think.

But the individual butterfly or earthquake remains just the unique existence which it is. We forget in explaining its occurrence that it is only the occurrence that is explained, not the thing itself.

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

But many of us seek community solely to escape the fear of being alone. Knowing how to be solitary is central to the art of loving. When we can be alone, we can be with others without using them as a means of escape.

Nature may certainly produce whatever can arise from habit: Nay, habit is nothing but one of the principles of nature, and derives all its force from that origin.

Someday the old shack we call the world will fall apart. How, we don't know, and we don't really care either. Since nothing has real substance, and life is a twirl in the void, its beginning and its end are meaningless.

There is no sorrow in the world, when we have escaped from the fear of death.

Many people think they are thinking when they are merely rearranging their prejudices. 

Now in all of us, however constituted, but to a degree the greater in proportion as we are intense and sensitive and subject to diversified temptations, and to the greatest possible degree if we are decidedly psychopathic, does the normal evolution of character chiefly consist in the straightening out and unifying of the inner self. The higher and the lower feelings, the useful and the erring impulses, begin by being a comparative chaos within us - they must end by forming a stable system of functions in right subordination. Unhappiness is apt to characterize the period of order-making and struggle.

To fall into mere unreasoning deliquium of love and admiration, was not good; but such unreasoning, nay irrational supercilious no-love at all is perhaps still worse!-It is a thing forever changing, this of Hero-worship: different in each age, difficult to do well in any age. Indeed, the heart of the whole business of the age, one may say, is to do it well.

Only one thing matters: learning to be the loser.

If you are a man of learning, fight in the skull, kill ideas and create new ones. God hides in every idea as in every cell of flesh. Smash the idea, set him free! Give him another, a more spacious idea in which to dwell.

You do not ask what is the value, or what is the use, of this feeling. Of what use is the universe? What is the practical application of a million galaxies? Yet just because it has no use, it has a use-which may sound like a paradox, but is not. What, for instance, is the use of playing music? If you play to make money, to outdo some other artist, to be a person of culture, or to improve your mind, you are not really playing-for your mind is not on the music. You don't swing. When you come to think of it, playing or listening to music is a pure luxury, an addiction, a waste of valuable time and money for nothing more than making elaborate patterns of sound.

Every start upon an untrodden path is a venture which only in unusual circumstances looks sensible and likely to be successful.

When Scipio became consul and was keen on getting the province of Africa, promising that Carthage should be completely destroyed, and the senate would not agree to this because Fabius Maximus was against it, he threatened to appeal to the people, for he knew full well how pleasing such projects are to the populace.

Not less strong than the will to truth must be the will to sincerity. Only an age, which can show the courage of sincerity, can possess truth, which works as a spiritual force within it.

Behold, we go up to Jerusalem; and the Son of man shall be betrayed unto the chief priests and unto the scribes, and they shall condemn him to death, And shall deliver him to the Gentiles to mock, and to scourge, and to crucify him: and the third day he shall rise again.

Nature consists of the elements given by the senses. Primitive man first takes out of them certain complexes of these elements that present themselves with a certain stability and are most important to him. The first and oldest words are names for "things". ... The sensations are no "symbols of things". On the contrary the "thing" is a mental symbol for a sensation-complex of relative stability. Not the things, the bodies, but colours, sounds, pressures, times (what we usually call sensations) are the true elements of the world.

It is our fatalest misery just now, not easily alterable, and yet urgently requiring to be altered, That no British man can attain to be a Statesman, or Chief of Workers, till he has first proved himself a Chief of Talkers: which mode of trial for a Worker, is it not precisely, of all the trials you could set him upon, the falsest and unfairest?

I esteem myself happy to have as great an ally as you in my search for truth. I will read your work ... all the more willingly because I have for many years been a partisan of the Copernican view because it reveals to me the causes of many natural phenomena that are entirely incomprehensible in the light of the generally accepted hypothesis. To refute the latter I have collected many proofs, but I do not publish them, because I am deterred by the fate of our teacher Copernicus who, although he had won immortal fame with a few, was ridiculed and condemned by countless people (for very great is the number of the stupid).

Though he made a joke when asked to do the right thing, he always did it. He was so much more in earnest than he appeared. He did not do himself justice.

Every political good carried to the extreme must be productive of evil.

Christianity is most admirably adapted to the training of slaves, to the perpetuation of a slave society; in short, to the very conditions confronting us to-day.... The rulers of the earth have realized long ago what potent poison inheres in the Christian religion. That is the reason they foster it; that is why they leave nothing undone to instill it into the blood of the people. They know only too well that the subtleness of the Christian teachings is a more powerful protection against rebellion and discontent than the club or the gun.

A millennial belief in a Holy God may have the effect of deepening the soul, but it is also obviously archaic, and modern influences would presently bring me up to date and reveal how antiquated my origins were. To turn away from those origins, however, has always seemed to me an utter impossibility. It would be a treason to my first consciousness to un-Jew myself.

Americans need rest, but do not know it. I believe this to be a large part of the explanation of the crime wave in the United States.

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