QUOTE : They differed from one another and they differed from Braque and Picasso: Delaunay, for example, was unorthodox from the beginning; he insisted upon the role of light and color, and presently he moved on, or off, to a painting that Apollinaire baptized Orphism: Léger’s variations earned him the name of Tubist: Marcel Duchamp introduced movement: Jacques Villon described himself as an Impressionist-Cubist, and he refused to abandon his subtle shades: and in time many of the others relinquished the object entirely and with it all reference to reality, their pictures becoming wholly abstract. But all these differences were nothing compared to the difference between the Cubists’ work and any painting that had been seen before: the Cubist revolution was fundamental; the “Demoiselles d’Avignon” had changed the very nature and concept of painting, and it could never be the same again.