We are all afraid for our confidence, for the future, for the world. That is the nature of the human imagination. Yet every man, every civilization, has gone forward because of its engagement with what it has set itself to do.

Einstein was a man who could ask immensely simple questions. And what his work showed is that when the answers are simple too, then you can hear God thinking.

The most wonderful discovery made by scientists is science itself.

No science is immune to the infection of politics and the corruption of power.

Every animal leaves traces of what it was; man alone leaves traces of what he created.

Man is unique not because he does science, and his is unique not because he does art, but because science and art equally are expressions of his marvelous plasticity of mind.

The world is full of people who never quite get into the first team and who just miss the prizes at the flower show.

It is vain to say human beings ought to be satisfied with tranquillity: they must have action; and they will make it if they cannot find it.

Knowledge is an unending adventure at the edge of uncertainty.

Science has nothing to be ashamed of even in the ruins of Nagasaki. The shame is theirs who appeal to other values than the human imaginative values which science has evolved.

That is the essence of science: ask an impertinent question, and you are on the way to a pertinent answer.

We are all afraid for our confidence, for the future, for the world. That is the nature of the human imagination. Yet every man, every civilization, has gone forward because of its engagement with what it has set itself to do.

The values by which we are to survive are not rules for just and unjust conduct, but are those deeper illuminations in whose light justice and injustice, good and evil, means and ends are seen in fearful sharpness of outline.

Dissent is the native activity of the scientist, and it has got him into a good deal of trouble in the last years. But if that is cut off, what is left will not be a scientist. And I doubt whether it will be a man.

The world can only be grasped by action, not by contemplation.

The hand is the cutting edge of the mind.

You will die but the carbon will not; its career does not end with you. It will return to the soil, and there a plant may take it up again in time, sending it once more on a cycle of plant and animal life.

The world is made up of people who never quite get into the first team and who just miss the prizes at the flower show.

It is important that students bring a certain ragamuffin, barefoot irreverence to their studies; they are not here to worship what is known, but to question it.

We gain our ends only with the laws of nature; we control her only by understanding her laws.

The wish to hurt, the momentary intoxication with pain, is the loophole through which the pervert climbs into the minds of ordinary men.

Man masters nature not by force but by understanding. This is why science has succeeded where magic failed: because it has looked for no spell to cast over nature.

Power is the by-product of understanding.

To me, being an intellectual doesn't mean knowing about intellectual issues; it means taking pleasure in them.

Has there ever been a society which has died of dissent? Several have died of conformity in our lifetime.

Certainty ends inquiry.

Ask an impertinent question and you are on the way to the pertinent answer.

Every judgment in science stands on the edge of error, and is personal.

The symbol and the metaphor are as necessary to science as to poetry.

Man is unique not because he does science, and he is unique not because he does art, but because science and art equally are expressions of his marvelous plasticity of mind.

The most remarkable discovery ever made by scientists is science itself. The discovery must be compared in importance with the invention of cave-painting and of writing.

Science is the acceptance of what works and the rejection of what does not. That needs more courage than we might think.

It is a mistake to think of creative activity as something unusual.

It will take a long time, and certainly the West will remain the dominant civilization well into the next century, but the decline is occurring.

Had the Hebrews not been disturbed in their progress a thousand and more years ago, they would have solved all the great problems of civilization which are being solved now under all the difficulties imposed by the spirit of the Middle Ages.

Today's interpretations of religion are often backward and contradict the needs of civilization.

The gross heathenism of civilization has generally destroyed nature, and poetry, and all that is spiritual.

The only hope is that our civilization will collapse at a certain point, as always happens in history. Then, out of barbarity, a renaissance.

The city is the nerve center of our civilization. It is also the storm center.

Mankind is not likely to salvage civilization unless he can evolve a system of good and evil which is independent of heaven and hell.

No civilization other than that which is Christian, is worth seeking or possessing.

Our society must make it right and possible for old people not to fear the young or be deserted by them, for the test of a civilization is the way that it cares for its helpless members.

No doubt Western civilization has in the past been full of wars and revolutions, and the national elements in our culture, even when they were ignored, always provided an unconscious driving force of passion and aggressive self-assertion.

The high point of civilization is that you can hate me and I can hate you but we develop an etiquette that allows us to deal with each other because if we acted solely upon our impulse we'd probably go to war.

You think that a wall as solid as the earth separates civilization from barbarism. I tell you the division is a thread, a sheet of glass. A touch here, a push there, and you bring back the reign of Saturn.

The exact measure of the progress of civilization is the degree in which the intelligence of the common mind has prevailed over wealth and brute force.

When tillage begins, other arts follow. The farmers, therefore, are the founders of human civilization.

It is just because civilization is ever evolving, changing, and becoming more complicated, that experts find it so difficult to define it in explicit terms.

A slight daily unconscious luxury is hardly ever wanting to the dwellers in civilization; like the gentle air of a genial climate, it is a perpetual minute enjoyment.