White … is not a mere absence of color; it is a shining and affirmative thing, as fierce as red, as definite as black…. God paints in many colors; but He never paints so gorgeously, I had almost said so gaudily, as when He paints in white.
~ Gilbert Keith
White, purity, cleanliness, sterile. I tell my students, if you get in trouble (in one of their pieces), white is going to be your salvation.