Where does philosophy begin, and where does it end? For John Sallis, philosophy’s many starting points all lead back to Plato’s cave, a reminder that no matter how rigorous our thought, we can never quite escape to pure understanding. We remain always on the verge, at the limits of philosophy—but the verge, Sallis argues, is where the most decisive philosophical thinking takes place. The Verge of Philosophy is in one sense a memorial for Sallis’s longtime friend and interlocutor Jacques Derrida. The centerpiece of the book is an extended examination of three sites in Derrida’s thought: his interpretation of Heidegger regarding the privileging of the question, Derrida’s account of the Platonic figure of the good, and his interpretation of Plato’s discourse on the crucial concept of the chora, the originating space of the universe. Sallis’s explorations are given added weight—even poignancy—by his discussion of his many public and private philosophical conversations with Derrida over the decades of their friendship. The Verge of Philosophy thus simultaneously serves to mourn and remember a friend and to push forward the deeply searching discussions that lie at the very heart of that friendship. Rounded out with examinations of the myth of Orpheus and the parameters of a politics of music, Heidegger’s interpretation of Plato, and the question of a new beginning for philosophy, The Verge of Philosophy is a wholly original work by a master thinker and will be essential to all those who treasure philosophical inquiry.