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.