No day without a line. In Pliny, Hist. IX in the Harvard ed., p. 322. Natural as if 'Natural' were a surrogate for red, which visually and conceptually it seems to be. White , in Reis' quartet is the alterity of the combination of red, yellow, and blue, as also in Robert Ryman's white paintings.
Every plane is a plane and there is to be no representation.
Hans-Ulrich Obrist, trans.