They speak of naturalism in opposition to modern painting. I would like to know if anyone has ever seen a natural work of art. Nature and art, being two different things, cannot be the same thing. Through art we express our conception of what nature is not. Velasquez left us his idea of the people of his epoch. Undoubtedly they were different from what he painted them, but we cannot conceive a Philip IV in any other way than the one Velasquez painted...

Paris 1923. As quoted in Futurism, ed. Didier Ottinger; Centre Pompidou / 5 Continents Editions, Milan, 2008, p. 312