oil on canvas (50 x 100 cm)
Ovid, Metamorphoses book II.
 Chiron, the Centaur, taught his pupil; proud that he was honoured by that God-like charge. Behold, his lovely daughter, who was born beside the margin of a rapid stream, came forward, with her yellow hair as gold adown her shoulders.—She was known by name Ocyroe. The hidden things that Fate conceals, she had the power to tell; for not content was she to learn her father's arts, but rather pondered on mysterious things. So, when the god of Frenzy warmed her breast, gazing on Aesculapius,—the child of Phoebus and Coronis, while her soul was gifted, with prophetic voice she said; “O thou who wilt bestow on all the world the blessed boon of health, increase in strength! To thee shall mortals often owe their lives: to thee is given the power to raise the dead. But when against the power of Deities thou shalt presume to dare thy mortal skill, the bolts of Jove will shatter thy great might, and health no more be thine from thence to grant. And from a god thou shalt return to dust, and once again from dust become a God; and thou shalt thus renew thy destiny.—“And thou, dear father Chiron, brought to birth with pledge of an immortal life, informed with ever-during strength, when biting flames of torment from the baneful serpent's blood are coursing in thy veins, thou shalt implore a welcome death; and thy immortal life the Gods shall suffer to the power of death.—and the three Destinies shall cut thy thread.”
 She would continue these prophetic words but tears unbidden trickled down her face; and, as it seemed her sighs would break her heart, she thus bewailed; “The Fates constrain my speech and I can say no more; my power has gone. Alas, my art, although of little force and doubtful worth, has brought upon my head the wrath of Heaven. “Oh wherefore did I know to cast the future? Now my human form puts on another shape, and the long grass affords me needed nourishment. I want to range the boundless plains and have become, in image of my father's kind, a mare: but gaining this, why lose my human shape? My father's form is one of twain combined.” And as she wailed the words became confused and scarcely understood; and soon her speech was only as the whinny of a mare. Down to the meadow's green her arms were stretched; her fingers joined together, and smooth hoofs made of five nails a single piece of horn. Her face and neck were lengthened, and her hair swept downward as a tail; the scattered locks that clung around her neck were made a mane, tossed over to the right. Her voice and shape were altogether changed, and since that day the change has given her a different name.