Color is my day-long obsession, joy and torment. To such an extent indeed that one day, finding myself at the deathbed of a woman who had been and still was very dear to me, I caught myself in the act of focusing on her temples and automatically analyzing the succession of appropriately graded colors which death was imposing on her motionless face.
"Claude Monet: Les Nymphéas". Book by Georges Clemenceau, Ch. 2, 1926.