A profound student of light and movement, Rodin by deliberate amplification of the surfaces of his statues, avoiding dryness and harshness of outline, secures a zone of radiancy, a luminosity which creates the illusion of reality. He handles values in clay as a painter does his tones. He gets the design of the outline by movement which continually modifies the anatomy; the secret of the Greeks, he believes. He studies his profiles successively in full light, obtaining volume--or planes--at once and together; successive views of one movement. The light plays with more freedom upon his amplified surfaces, intensified in the modeling by enlarging the lines. The edges of certain parts are amplified, deformed, falsified, and we enjoy light-swept effects, luminous emanations. This deformation, he declares, was always practised by the great sculptors to snare the undulating appearance of life. Sculpture, he asserts, is the "art of the hole and lump, not of clear, well-smoothed, unmodeled figures." Finish kills vitality. Yet Rodin can chisel a smooth nymph, if he so wills, but her flesh will ripple and run in the sunlight. His art is one of accents. He works by profile in depth, not by surfaces. He swears by what he calls "cubic truth"; his pattern is a mathematical figure; the pivot of art is balance, i.e., the opposition of volumes produced by movement. Unity haunts him. He is a believer in the correspondence of things, of continuity in nature. He is mystic, as well as a geometrician. Yet such a realist is he that he quarrels with any artist who does not recognize "the latent heroic in every natural movement."