Walter returns to the same questions he was grappling with at the end of Volume Eight as he contrasts lust with pure, spiritual love. Plato’s philosophy does indeed support Walter’s theory, but Diogenes is an odd choice: the Greek philosopher was renowned for his bizarre, immoral behavior, including public masturbation. The bull is a symbol of sexuality, and so Obadiah’s accusation of impotency is metaphorically charged, as well as an insult to the quality of Walter’s livestock.