It's only those who do nothing that make no mistakes, I suppose.

Any work that aspires, however humbly, to the condition of art should carry its justification in every line.

Everything belonged to him. It made me hold my breath in expectation of hearing the wilderness burst into prodigious peal of laughter that would shake the fixed stars in their places.

To have his path made clear for him is the aspiration of every human being in our beclouded and tempestuous existence.

Do not talk to me of Archimedes' lever. He was an absent-minded person with a mathematical imagination. Mathematics commands my respect, but I have no use for engines. Give me the right word and the right accent and I will move the world.

A certain simplicity of thought is common to serene souls at both ends of the social scale.

Imagination, not invention, is the supreme master of art as of life.