The excuse that the painters were documenting reality was becoming ridiculous. Photographers and film makers went far beyond them. Already it could b… - Jean Metzinger

If we wished to relate the space of the [Cubist] painters to geometry, we should have to refer it to the non-Euclidean mathematicians; we should have to study, at some length, certain of Riemann's theorems.

Albert Gleizes did not know Montmartre, had never seen anything of Picasso or Juan Gris, never heard Maurice Princet construct an infinite number of different spaces for the use of painters, but he described to me the absurdity of the museums in which mournful, extravagantly three dimensional crowds threaten to crush the visitor by jumping out of their frames.

It should be said that such an art would be neither more false nor more true than classical art.