But if it so happens ... a work ... under pain of otherwise becoming shameful or false, requires fantasy ... [and that] certain limbs or elements of a figure are altered by borrowing from other species, for example transforming into a dolphin the hinder end of a griffon or a stag ... these alterations will be excellent and the substitution, however unreal it may seem, deserves to be declared a fine invention in the genre of the monstrous. When a painter introduces into this kind of work of art chimerae and other imaginary beings in order to divert and entertain the senses and also to captivate the eyes of mortals who long to see unclassified and impossible things, he shows himself more respectful of reason than if he produced the usual figures of men or of animals.