I always forbade everyone to clean my studios, dust them, not only for fear they would disturb my things, but especially because I always counted on the protection of dust. It's my ally. I always let it settle where it likes. It's like a layer of protection.

We didn't want to sign the painting itself, that would have interfered with the composition. And even later, for that reason or for another, I sometimes marked my canvases on the back. If you don't see my signature and the date, madam, it's because the frame is hiding it.

My whole life has been nothing more than a continuous struggle against Reaction and the death of art.

Everybody has the same energy potential. The average person wastes his in a dozen little ways. I bring mine to bear on one thing only: my paintings, and everything else is sacrificed to it...myself included.

The best calculation is the absence of calculation. Once you have attained a certain level of recognition, others generally figure that when you do something, it's for an intelligent reason. So it's really foolish to plot out your movements too carefully in advance. You're better off acting capriciously.

If it's good, it's mine. If it's bad, it's a fake.

Ah, good taste! What a dreadful thing! Taste is the enemy of creativeness.