Computers are useless - all they can give you are answers.

When I paint I feel that all the artists of the past are behind me.

When you begin a picture you often make some pretty discoveries. You must be on guard against these. Destroy the thing, do it over several times. In each destroying of a beautiful discovery, the artist does not really suppress it, but rather condenses it, makes it more substantial. What comes out in the end is the result of discarded finds. Otherwise you become your own connoisseur.

...art is something subversive. It's something that should not be free. Art and liberty, like the fire of Prometheus, are things that one must steal, to be used against the established order.

Cubism is not a reality you can take in your hand. It's more like a perfume, in front of you, behind you, to the sides, the scent is everywhere but you don’t quite know where it comes from.

If I were to sign it now, I'd be committing forgery. I'd be putting my 1943 signature on a canvas painted in 1922.

Never permit a dichotomy to rule your life, a dichotomy in which you hate what you do so you can have pleasure in your spare time. Look for a situation in which your work will give you as much happiness as your spare time.