The period during the First World War was a very exciting time in Paris, with artists, philosophers, and poets continually discussing and arguing about the work with which they were involved. Although I myself am little concerned with abstract theory, I certainly do think of cubism as a form of emancipation essentially different from artistic movements that had preceded it. Thus, impressionism, while it was a revolutionary technique, was still an essentially naturalistic movement concerned with a precise examination of the nature of light and the effect of changing lights on representational scenes and objects. Cubism did add a new dimension to painting and sculpture, a dimension that changed our way of looking at nature and the work of art.