Abstract

Bessarion’s major philosophical treatise In Calumniatorem Platonis is a systematic approach to Platonic and Aristotelian philosophy written in response to George of Trebizond’s Comparatio Philosophorum Aristotelis et Platonis, which attacked Plato’s authority and proclaimed Aristotle’s superiority. A striking example of this is Bessarion’s attempt to defend Plato against George of Trebizond’s accusation that Plato did not offer sound arguments in favor of the immortality of the soul. In this article, I focus on Plato’s proof of the immortality of the soul in the Phaedrus (245c5-246a2), as presented by Bessarion in the eighth chapter of the second book of the In Calumniatorem Platonis. The Phaedrusʼ proof is based on soul’s definition as a self-mover: since the soul always moves itself, it is the source of motion and is, therefore, ungenerated, imperishable and immortal. Bessarion’s interpretation of the Platonic proof gives the impression that Bessarion cites the text where Plato argues that the soul is immortal (245c5-9), and he summarises the text where Plato argues that the soul is ungenerated and imperishable (245d1-246a2). I argue, however, that Bessarion does not offer an original reading of the Phaedrus’ proof, and I also propose that Bessarion’s interpretation reflects his attempt to harmonize the Platonic and the Aristotelian views.