Justice is what love looks like in public.

Every valuable human being must be a radical and a rebel, for what he must aim at is to make things better than they are.

Nothing is so fatal to the progress of the human mind as to suppose that our views of science are ultimate; that there are no mysteries in nature; that our triumphs are complete, and that there are no new worlds to conquer.

The highest ensign that men ever met and embraced under, the Cross itself, had no meaning save an accidental extrinsic one.

Make your educational laws strict and your criminal ones can be gentle; but if you leave youth its liberty you will have to dig dungeons for ages.

The vitality of thought is in adventure. Ideas won't keep. Something must be done about them. When the idea is new, its custodians have fervor, live for it, and, if need be, die for it.

Wars have never made peace or preserved it or fostered its ideals. To have peace you must make peace with your enemy. To make peace only with your friends is to avoid the issue, and to permit a great principle to become absurd. Far from making peace, wars invariably serve as classrooms and laboratories where men and techniques and states of mind are prepared for the next war.

My education, which was wholly his work, had been conducted without any regard to the possibility of its ending in this result; and I saw no use in giving him the pain of thinking that his plans had failed, when the failure was probably irremediable, and, at all events, beyond the power of his remedies. Of other friends, I had at that time none to whom I had any hope of making my condition intelligible. It was however abundantly intelligible to myself; and the more I dwelt upon it, the more hopeless it appeared.

Love of the absolute engenders a predilection for self-destruction. Hence the passion for monasteries and brothels. Cells and women, in both cases. Weariness with life fares well in the shadow of whores and saintly women.

You rejoice in having made a convert to Atheism. I think there is something unnatural in a zeal of proselytism in an Atheist. I do not believe in an intellectual God, a God made after the image of man. In the vulgar acceptation of the word, therefore, I think a man is right who does not believe in God, but I am also persuaded that a man is wrong who is without religion.

Our greatest stupidities may be very wise.

The indispensible is not necessarily the desirable.

The significance of God, cause, number, substance or soul consists, as James asserts, in nothing but the tendency of the given concept to make us act or think. If the world should reach a point at which it ceases to care not only about such metaphysical entities but also about murders perpetrated behind closed frontiers or simply in the dark, one would have to conclude that the concepts of such murders have no meaning, that they represent no 'distinct ideas' or truths, since they do not make any 'sensible difference to anybody.

Or indeed we may say again, it is in what I called Portrait-painting, delineating of men and things, especially of men, that Shakspeare is great. All the greatness of the man comes out decisively here. It is unexampled, I think, that calm creative perspicacity of Shakspeare. The thing he looks at reveals not this or that face of it, but its inmost heart and generic secret: it dissolves itself as in light before him, so that he discerns the perfect structure of it. Creative, we said: poetic creation, what is this too but seeing the thing sufficiently? The word that will describe the thing, follows of itself from such clear intense sight of the thing. And is not Shakspeare's morality, his valour, candour, tolerance, truthfulness; his whole victorious strength and greatness, which can triumph over such obstructions, visible there too? Great as the world!

'Our kingdom go' is the necessary and unavoidable corollary of 'Thy kingdom come.' For the more there is of self, the less there is of God.

Once we have surrendered our senses and nervous systems to the private manipulation of those who would try to benefit from taking a lease on our eyes and ears and nerves, we don't really have any rights left. Leasing our eyes and ears and nerves to commercial interests is like handing over the common speech to a private corporation, or like giving the earth's atmosphere to a company as a monopoly.

Incomprehensible and immutable is the love wherewith God loves. He did not begin to love us only on the day we were reconciled to Him by the blood of His Son; He loved us before the world was made, that we too might become His sons together with His Only-begotten Son, long before we had any existence.

Not content with real sufferings, the anxious man imposes imaginary ones on himself; he is a being for whom unreality exists, must exist; otherwise where would he obtain the ration of torment his nature demands?

Now, that we do not really know of what sort each thing is, or is not, has often been shown.

Such delusions of grandeur to think that a God with a hundred billion galaxies on his mind would give a tuppenny damn who you sleep with, or indeed whether you believe in him.

We have no reason to fear lest a habit of conscientious inquiry should paralyse the actions of our daily life. But because it is not enough to say, "It is wrong to believe on unworthy evidence," without saying also what evidence is worthy, we shall now go on to inquire under what circumstances it is lawful to believe on the testimony of others; and then, further, we shall inquire more generally when and why we may believe that which goes beyond our own experience, or even beyond the experience of mankind.

I am convinced that we have a degree of delight, and that no small one, in the real misfortunes and pains of others.

It is a rough road that leads to the heights of greatness.

Pay attention to your enemies, for they are the first to discover your mistakes.

We do not have a complete and satisfying knowledge of the world. We are reduced to the simple conclusion that everywhere in the world there is life like ourselves and that all life is shrouded in mystery. A true acquaintance with the world consists in being filled with a sense of the mystery of existence and life. This mystery becomes only more mysterious with every advance in scientific research. To be filled with the mystery of life is like that which is called in the language of mysticism the "wise ignorance," an ignorance which is nonetheless knowledge of the essential.

The christian religion is a parody on the worship of the Sun, in which they put a man whom they call Christ, in the place of the Sun, and pay him the same adoration which was originally paid to the Sun.

I think that the task of philosophy is not to provide answers, but to show how the way we perceive a problem can be itself part of a problem.

If I had been by nature extremely quick of apprehension, or had possessed a very accurate and retentive memory or were of a remarkably active and energetic character, the trial would not be conclusive; but in all these natural gifts I am rather below than above par; what I could do, could assuredly be done by any boy or girl of average capacity and healthy physical constitution: and if I have accomplished anything, I owe it, among other fortunate circumstances, to the fact that through the early training bestowed on me by my father, I started, I may fairly say, with an advantage of a quarter of a century over my contemporaries.

Atheists have the intellectual courage to accept reality for what it is: wonderfully and shockingly explicable. As an atheist, you have the moral courage to live to the full the only life you're ever going to get: to fully inhabit reality, rejoice in it, and do your best finally to leave it better than you found it.

My own belief is, if philosophers be entitled to any credit, that the Sun is the common parent of all men, to use a comprehensive term. It is a true proverb, "Man begets man, and so does the Sun:" but souls that luminary showers down upon earth, both out of himself, and out of the other gods: which souls show to what end they were propagated by the kind of life that they pursue. But well is it for that man who, from the third generation backwards, and a long succession of years, has been dedicated to the service of this god; yet neither is that person's condition to be despised who, feeling in his own nature that he is a servant of this deity, alone, or with few on his side, shall have devoted himself to his worship.

Man was born to live with his fellow human beings. Separate him, isolate him, his character will go bad, a thousand ridiculous affects will invade his heart, extravagant thoughts will germinate in his brain, like thorns in an uncultivated land.

Think of something finite molded into the infinite, and you think of man.

Someone once asked me, "If you had your choice, Dr. Asimov, would it be women or writing?" My answer was, "Well, I can write for twelve hours at a time without getting tired."

History is a story without an end.

What is imposed on us by birth and environment is what we are called upon to overcome.

In former days, men sold themselves to the Devil to acquire magical powers. Nowadays they acquire those powers from science, and find themselves compelled to become devils. There is no hope for the world unless power can be tamed, and brought into the service, not of this or that group of fanatical tyrants, but of the whole human race, white and yellow and black, fascist and communist and democrat; for science has made it inevitable that all must live or all must die.

Give an inch, he'll take an ell.

In order to cease being a doubtful case, one has to cease being, that's all.

Under the ideal measure of values there lurks the hard cash.

"In the light, the earth remains our first and our last love. Our brothers are breathing under the same sky as we; justice is a living thing. Now is born that strange joy which helps one live and die, and which we shall never again postpone to a later time."

Faith makes us live by showing us that life, although it is dependent upon reason, has its well spring and source of power elsewhere, in something supernatural and miraculous. Cournot the mathematician, a man of singularly well-balanced and scientifically equipped mind has said that it is this tendency towards the supernatural and miraculous that gives life, and that when it is lacking, all the speculations of reason lead to nothing but affliction of the spirit. ...And in truth we wish to live.

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...

The tiger that assails me is in the right, and I who strike him down am also in the right. I defend against him not my right, but myself.

I have enough to eat till my hunger is stayed, to drink till my thirst is sated; to clothe myself withal; and out of doors not Callias there, with all his riches, is more safe than I from shivering; and when I find myself indoors, what warmer shirting do I need than my bare walls? what ampler greatcoat than the tiles above my head?

Philosophers are as jealous as women. Each wants a monopoly of praise.

The Upanishads and the Vedas haunt me. In them I have found eternal compensation, unfathomable power, unbroken peace.

If a poor person envies a rich person, he is no better than the rich person.