We shall soon have to build heavily insulated cloisters where neither radio waves nor newspapers can come, in which ignorance of all politics will be guarded and cultivated. Speed, numbers, effects of surprise, contrast, repetition, size novelty, and credulity will be despised there. And thither, on certain days, visitors will come, to look through the iron bars at a few specimens of free men.

A great man is one who leaves others at a loss after he is gone.

Every man expects some miracle — either from his mind or from his body or from someone else or from events.

The mind has transformed the world, and the world is repaying it with interest. It has led man where he had no idea how to go.

A man's true secrets are more secret to himself than they are to others.

Man's great misfortune is that he has no organ, no kind of eyelid or brake, to mask or block a thought, or all thought, when he wants to.

A man is a poet if difficulties inherent in his art provide him with ideas; he is not a poet if they deprive him of ideas.

Having precise ideas often leads to a man doing nothing.

Man is only man at the surface. Remove the skin, dissect, and immediately you come to machinery.