If you let your eye stray over a palette of colors, you experience two things. In the first place you receive a purely physical effect, namely the eye itself is enchanted by the beauty and other qualities of color. You experience satisfaction and delight, like a gourmet savoring a delicacy...These are physical sensations, limited in duration...Just as we feel at the touch of ice a sensation of cold, forgotten as soon as the finger becomes warm again, so the physical action of color is forgotten as soon as the eye turns away. On the other hand, as the physical coldness of ice, upon penetrating more deeply, arouses more complex feelings, and in