I simply try to put down colors which render my sensation

Color helps to express light, not the physical phenomenon, but the only light that really exists, that in the artist's brain.

The artist begins with a vision - a creative operation requiring effort. Creativity takes courage.

Seeing is in itself a creative act which requires effort.

Seek for the boldest color possible, content is irrelevant.

The artists must see all things as if he were seeing them for the first time. All his life he must see as he did when he was a child.

Don't try to be original. Be simple. Be good technically, and if there is something in you, it will come out.