Heidegger revisits the three types of history described in Nietzsche’s “The Uses and Abuses of History for Life” (SZ 396). While noting the unity of the multiple meanings of “life” for Nietzsche, Heidegger claims that he neither justifies nor investigates his supposition that being is living—and, indeed, living as a ceaseless enhancement and expansion of power—and that a human being is, at bottom, an animal subject, indeed, a predatory animal (Raubtier) (214–19, 232f).