Only useless things are indispensable.

The future is a monotonous instrument

Between my head and my hand, there is always the face of death.

Taste is tiring like good company.

Youth doesn't reason, it acts. The old man reasons and would like to make the others act in his place.

You are always looking for already-felt emotions, just as you like to get an old pair of trousers back from the cleaners, which seem new when you don't look too closely. Artists are cleaners, don't let yourself be taken in by them. True modern works of art are made not by artists but quite simply by men.

New York is the cubist, the futurist city. It expresses in its architecture, its life, its spirit, the modern thought.