"Such is the constitution of all things, or such the plastic power of the human eye, that the primary forms, as the sky, the mountain, the tree, the animal, give us a delight in and for themselves; a pleasure arising from outline, color, motion, and grouping. This seems partly owing to the eye itself. The eye is the best of artists." – Ralph Waldo Emerson, Nature, quoted in Brett Weston's book, Voyage of the Eye
