Painting from nature is not copying the object, it is realizing sensations. - Paul Cézanne

Colour is the place where our brain and the universe meet. That's why colour appears so entirely dramatic, to true painters. Look at Sainte-Victoire there [the hill, which Cézanne painted again and again] How it soars, how imperiously it thirsts for the sun!. .For a long time I was quite unable to paint Sainte-Victoire; I had no idea to go about it because, like others who just look at it, I imagined the shadow to be concave, whereas in fact it's convex, it disperses outward from the center. Instead of accumulating, it evaporates, becomes fluid, bluish, participating in the movements of the surrounding air. Just as over there to the right, on the Pilon du Roi, you can see the contrary effect, the brightness gently rocking to and fro, moist and shimmering. That's the sea.. ..That's one needs to depict. What one needs to know. That's the bath of experience, so to speak...

To my mind one does not put oneself in place of the past, one only adds a new link.

He (Delacroix) turns David [French painter] upside down. His painting is iridescent. Seeing one Constable [famous English landscape painter, admired by French painters, then] is enough to make him understand all the possibilities of landscape, and he too sets up his easel by the sea.. .And he has a sense of human being, of life in movement, of warmth. Everything moves, every glistens. The light!.. .There is more warm light in this interior [probably: Delacroix's 'Woman of Algiers'] of his than in all of Corot's landscapes..