De diez errores políticos, nueve consisten simplemente en creer todavía verdadero lo que ha cesado de serlo. - Henri Bergson

Doctrines which have a basis of intuition escape Kantian criticism to the exact extent that they are intuitive; and these doctrines are the whole of metaphysics, provided one does not take the metaphysics congealed and dead in theses, but living in philosophers. To be sure, these divergences are striking between the schools, that is to say, in short, between the groups of disciples formed around certain of the great masters. But would one find them as clear-cut between the masters themselves? Something here dominates the diversity of systems, something, I repeat, simple and definite like a sounding of which one feels that it has more or less reached the bottom of a same ocean, even though it brings each time to the surface very different materials. It is on these materials that disciples normally work: in that is the role of analysis. And the master, in so far as he formulates, develops, translates into abstract ideas what he brings, is already, as it were, his own disciple. But the simple act which has set analysis in motion and which hides behind analysis, emanates from a faculty quite different from that of analysing. This is by very definition intuition.

De um mal entendido sobre isso é que nasceu a celeuma entre o realismo e o idealismo na arte. Sem dúvida, a arte nada mais é que uma visão mais direta da realidade. Mas essa pureza de percepção implica uma ruptura com a convenção utilitária, um desprendimento inato e especificamente localizado do sentido ou da consciência, enfim, certa imaterialidade de vida, que vem a ser o que sempre se chamou de idealismo. Por conseguinte, pode-se afirmar, sem jogar de modo algum com o sentido das palavras, que o realismo está na obra quando o idealismo está na alma, e que só à força de idealidade se toma contato com a realidade.

Europe is overpopulated, the world will soon be in the same condition, and if the self-reproduction of man is not rationalized... we shall have war.