Every art expression is rooted fundamentally in the personality and temperament of the artist.

Color is a plastic means of creating intervals... color harmonics produced by special relationships, or tensions. We differentiate now between formal tensions and color tensions, just as we differentiate in music between counterpoint and harmony.

To sense the invisible and to be able to create it, that is art.

It makes no difference whether a work is naturalistic or abstract; every visual expression follows the same fundamental laws

I can't understand how anyone is able to paint without optimism. Despite the general pessimistic attitude in the world today, I am nothing but an optimist.

The child is really an artist, and the artist should be like a child, but he should not stay a child. He must become an artist. That means he cannot permit himself to become sentimental or something like that. He must know what he is doing

A thought functions only as a fragmentary part in the formulation of an idea.