Apuleius on the Doctrines of Plato which is also known as On Plato and his Doctrine (Latin: De Dogmate Platonis) is divided into three parts. Book I: On Natural Philosophy. Book II: On Moral Philosophy. Book III: On the Philosophy of Reasoning. Painting: Cupid and Psyche by François Pascal Simon. Translated by George Burges. Audiobook read by Geoffrey Edwards.