People in the ancient world thought of vision as both an ethical tool and a tactile sense, akin to touch. Gazing upon someone--or oneself--was treated as a path to philosophical self-knowledge, but the question of tactility introduced an erotic element as well. In The Mirror of the Self , Shadi Bartsch asserts that these links among vision, sexuality, and self-knowledge are key to the classical understanding of the self. Weaving together literary...