The greatest genius will not be worth much if he pretends to draw exclusively from his own resources

Classicism is health, romanticisim is sickness.

The senses do not deceive us, but the judgment does.

Let no one be ashamed to say yes today if yesterday he said no. Or to say no today if yesterday he said yes. For that is life. Never to have changed-what a pitiable thing of which to boast!

The artist who is not also a craftsman is no good; but, alas, most of our artists are nothing else.

No one knows what he is doing so long as he is acting rightly; but of what is wrong one is always conscious.

Who is the wisest man? He who neither knows or wishes for anything else than what happens.