After a half-century of hard work and reflection the wall is still there.

When I put a green, it is not grass. When I put a blue, it is not the sky.

What interests me most is neither still life nor landscape, but the human figure.

If drawing belongs to the world of spirit and color to that of the senses, you must draw first to cultivate the spirit.

Derive happiness in oneself from a good day's work, from illuminating the fog that surrounds us.

We ought to view ourselves with the same curiosity and openness with which we study a tree, the sky or a thought, because we too are linked to the entire universe.

I never retouch a sketch: I take a canvas the same size, as I may change the composition somewhat. But I always strive to give the same feeling, while carrying it on further.