You shall judge a man by his foes as well as by his friends.

I remember my youth... the feeling that I could last forever, outlast the sea, the earth, and all men.

Mathematics commands all my respect, but I have no use for engines.

It seems to me I am trying to tell you a dream - making a vain attempt, because no relation of a dream can convey the dream-sensation, that commingling of absurdity, surprise, and bewilderment in a tremor of struggling revolt, that notion of being captured by the incredible which is of the very essence of dreams.

Art is long and life is short, and success is very far off.

The blight of futility that lies in wait for men's speeches had fallen upon our conversation and made it a thing of empty sounds.

A writing may be lost; a lie may be written; but what the eye has seen is truth and remains in the mind!