Thomism is a philosophical and theological body of ideas which arose as a legacy of the work and thought of Thomas Aquinas (1225–1274). It holds that there are enduring philosophical questions about reality, knowledge and value; that Thomism offers an ever-relevant set of answers to these; and that these answers constitute an integrated philosophical system. With periodic revivals, Thomism has exerted influence over philosophical and theological thinkers for many centuries. In this volume, leading specialists in Aquinas's thought revisit Thomism and assess how it is viewed today. They analyse its key features and show how it can speak to modern concerns not only in philosophy and theology, but also in contemporary science, biology and political theory. The volume will appeal to scholars and graduate students in philosophy, theology and related disciplines, and to all who are interested in the continuing power and development of Thomism.