The Tacit Presence of Aristotle's Phronesis in Heidegger's Being and Time

The Priority of the practical approach toward the world to theoretical approach is one of the most fundamental components of Heidegger’s “Being and Time”. In fact, Heidegger believes that the first disclosure of Dasein to the world is based on practice rather than speculation and even Dasein is the same practice. Thus, according to Heidegger, the theory is only a derivative form of Praxis. Heidegger doesn’t refer to “Aristotle’s Phronesis” explicitly in “BT”. However, we can find the implicit presence of this concept all over the book to the extent that researchers like Volpi consider “BT” as a translation of Aristotle’s “Nichomachean Ethics”. I Will try, in this article, to present four tacit presences of Phronesis in “Being and Time” and to show that these four presences have founded on KAIROS that Heidegger emphasizes on it especially in the “Phenomenology of Religious Life” Lecture course.