This volume of essays is an important introduction to the thought of one of the twentieth century's most significant yet underappreciated philosophers, Richard McKeon. The originator of philosophical pluralism, McKeon made extraordinary contributions to philosophy, to international relations, and to theory-formation in the communication arts, aesthetics, the organization of knowledge, and the practical sciences. This collection, which includes a philosophical autobiography as well as the out-of-print title essay "Freedom and History" and a previously unpublished essay on "Philosophic Semantics and Philosophic Inquiry," is a testimony to the range and systematic power of McKeon's thinking for the social sciences and the humanities.