"[with painting] directly tube against canvas, one soon becomes too slick.. .I regretfully realized that my composition was reduced to no more than a series of coloured rhythms, harmonious, discordant, monotonous and that, from simplification to simplification, I was falling into the trap of decoration. I no longer got to the bottom of things: I no longer cut through to their heart. The decorative spirit was leading me to forget painting."