Rules have no existence outside of individuals: otherwise a good professor would be as great a genius as Racine. - Henri Matisse

In a picture every part will be visible and will play the role conferred upon it, be it principal or secondary. All that is not useful in the picture is detrimental.

Slowly I discovered the secret of my art. It consists of a meditation on nature, on the expression of a dream which is always inspired by reality. With more involvement and regularity, I learned to push each study in a certain direction. Little by little the notion that painting is a means of expression asserted itself, and that one can express the same thing in several ways. Exactitude is not truth, Delacroix liked to say.

Delacroix's composition is more entirely created, while that of Seurat employs matter organized scientifically, reproducing, presenting t our eyes objects constructed by scientific means rather than by signs, coming from our feeling. As result there is in his works a positivism, a slightly inert stability, coming from his composition, which is not the result of a creation of the mind, but of a juxtaposition of the objects. It is necessary to cross this barrier to re-feel light, colored and soft, and pure, the noblest pleasure