A book titled in reference to this philosopher analyzes the global spread of the idea of “race” in theorizing a “Becoming Black of the world.” This philosopher inspired a “Black radical” school developed by Charles W. Mills. Emmanuel Eze ignited the study of this philosopher’s racism in the 1990s. This philosopher posited four races (15[1])that come from a “lineal root genus” in “On the Different Races of Man” and debated the definition of race with Georg Forster. A book by this philosopher has a title adjective replaced by “Black” and (*) “Postcolonial” in a pair of books by Achille Mbembe and Gayatri Spivak. This philosopher is often seen as adopting racial egalitarianism in works like Toward Perpetual Peace (10[1])and one that outlines the Doctrine of Right and the Doctrine of Virtue, which builds on an earlier “Groundwork.” For 10 points, name this author of The Metaphysics of Morals. ■END■