The artist should paint not only what he sees before him, but also what he sees within him. If, however, he sees nothing within him, then he should also refrain from painting that which he sees before him. Otherwise, his pictures will be like those folding screens behind which one expects to find only the sick or the dead.

A painting which does not take its inspiration from the heart is nothing more than futile juggling.

Close your bodily eye, that you may see your picture first with the eye of the spirit. Then bring to light what you have seen in the darkness, that its effect may work back, from without to within.

I must stay alone and know that I am alone to contemplate and feel nature in full; I have to surrender myself to what encircles me, I have to merge with my clouds and rocks in order to be what I am.

The painter should paint not only what he has in front of him, but also what he sees inside himself. If he sees nothing within, then he should stop painting what is in front of him.

The pure, frank sentiments we hold in our hearts are the only truthful sources of art.

The divine is everywhere, even in a grain of sand; there I represented it in the reeds.