Now it must be seen that the stone […] brought under the artist’s hand to the beauty of form is beautiful not as stone – for so the crude block would be as pleasant – but in virtue of the form or idea introduced by the art. This form is not in the material; it is in the designer before ever it enters the stone; and the artificer holds it not by his equipment of eyes and hands but by his participation in his art. The beauty, therefore, exists in a far higher state than in the art; for it does not come over integrally into the work; that original beauty is not transferred; what comes over is a derivative and a minor: and even that shows itself upon the statue not integrally and with entire realization of intention but only in so far as it has subdued the resistance of the material. (Plotinus, Ennead V 8.1)