The crucial motion turns on the meaning of Ent-sprechen is not "an answer to" (une réponse à), but a "response to," a "correspondence with," a dynamic reciprocity and matching such as occur when gears, both in quick motion mesh. Thus, our question as to the nature of philosophy calls not for an answer in the sense of a textbook definition or formulation, be it Platonic, Cartesian, or Lockeian, but for an Ent-sprechung, a response, a vital echo, a "re-sponsion" in the liturgical sense of participatory engagement.