You must think. The eye is not enough; it needs to think as well.

People think how a sugar basin has no physiognomy, no soul. But it changes every day.

With an apple I will astonish Paris.

I allow no one to touch me.

It is not about painting life, it is about making painting alive.

Shadow is a colour as light is, but less brilliant; light and shadow are only the relation of two tones.

Tell me, do you think I'm going mad? I sometimes wonder, you know.