At Vienna, one of the audience affirmed publicly that my performance was not surprising, for he had distinctly seen, while I was playing my variations, the devil at my elbow, directing my arm and guiding my bow. My resemblance to… — Niccolo Paganini Copy Share Image
Any color is more distinctly seen when opposed to its contrary: thus, black on white, blear near yellow, green near red, and so on. — Leonardo da Vinci Copy Share Image
