Abstract
In this paper I intend to provide an interpretation of Heidegger's "Turn" (Kehre)－a concept that is very important for understanding his philosophical development. This article is divided into four sections. In the first section, I begin with a passage from the "Letter on Humanism" (1946), in which Heidegger for the first tie publicly speaks of the "Turn" in his philosophy. By following Heidegger's indications I try them, in the second section, to clarify his concept of truth. Heidegger's critique of propositional truth and his explication of the relation of truth and non-truth are discussed. Here the concept of "Non-truth" serves a pivotal role for Heidegger's treatment of the concept of truch. In order to elucidate the concept of Non-truth, I commit myself, in the third section, to Heidegger's concepts of "Clearing" (Lichturg), "Unconcealment" (Unverborgenheit) and "Un-concealing" (Ent-bergen). My own interpretation of the meaning of Heidegger's Turn will be expressed in the final section.