Bernhard Waldenfels is professor of philosophy at the Ruhr University, in Bochum, Germany. He has written books about phenomenology, dialog theory, the "life world," structures of behavior, and order and normativity.David J. Parent is professor of German at Illinois State University. He has translated books on philosophical anthropology, phenomenology, and Friedrich Nietzsche.David J. Parent is professor of German at Illinois State University. He has translated books on philosophical anthropology, phenomenology, and Friedrich Nietzsche.