The sadness will last forever.

How rich art is, if one can only remember what one has seen, one is never empty of thoughts or truly lonely, never alone.

What a splendid thing watercolour is to express atmosphere and distance, so that the figure is surrounded by air and can breathe in it.

My sketchbook is a witness of what I am experiencing, scribbling things whenever they happen.

Man is not on the earth solely for his own happiness. He is there to realize great things for humanity.

Exaggerate the essential, leave the obvious vague.

I am astonished at the high prices paid for works by painters who are dead, prices none of them could expect when they were alive. It is a kind of tulip trade, in which living painters suffer but do not profit.