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

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.

Roosevelt's magic lay in one facet of his personality: He knew how to take the risk. No other man in public life I knew could so readily take the challenge of the new.

Man was born free, and he is everywhere in chains.

Photography is a major force in explaining man to man.

The world is... the natural setting of, and field for, all my thoughts and all my explicit perceptions. Truth does not inhabit only the inner man, or more accurately, there is no inner man, man is in the world, and only in the world does he know himself.

I am neither a child, a young man, nor an ancient; nor am I of any caste.

I want the municipality to be a helping hand to the man with a desire of sympathy, to help the fallen when it is not in their power to help themselves.

I always looked for a man to rescue me and bring me happiness. I bought into that myth, of course, and looked for my own Prince Charming.

A desire to be observed, considered, esteemed, praised, beloved, and admired by his fellows is one of the earliest as well as the keenest dispositions discovered in the heart of man.

Nonviolence is a powerful and just weapon. which cuts without wounding and ennobles the man who wields it. It is a sword that heals.

Let me first state that I believe that marriage is a sacred union between one man and one woman.

A man must be strong in that profession, he must have vigor of body and mind, yet I am all out of breath if I walk up a hill; I have not the heart to crush even a fly.

An intelligent man is sometimes forced to be drunk to spend time with his fools.

I believe that if a man does a job as well as a woman, he should be paid as much.

For a man to strike any women is most brutal, and I, as well as everyone else, think this far worse than any attempt to shoot, which, wicked as it is, is at least more comprehensible and more courageous.

There is always a type of man who says he loves his fellow men, and expects to make a living at it.

A man may be in as just possession of truth as of a city, and yet be forced to surrender.