It is a question whether, when we break a murderer on the wheel, we do not fall into the error a child makes when it hits the chair it has bumped into.

The pleasures of the imagination are as it were only drawings and models which are played with by poor people who cannot afford the real thing.

All mathematical laws which we find in Nature are always suspect to me, in spite of their beauty. They give me no pleasure. They are merely auxiliaries. At close range it is all not true.

The Greeks possessed a knowledge of human nature we seem hardly able to attain to without passing through the strengthening hibernation of a new barbarism.

It is a great shame; most of our words are misused tools / which often still smell of the mud in which previous owners / desecrated them.

They do not think, therefore they are not.

It is almost impossible to carry the torch of truth through a crowd without singeing somebody's beard.