Book excerpt: Originally published in The Hafner Library of Classics in 1953, The Political Ideas of St. Thomas Aquinas provides important insights into the human side of one of the most influential medieval philosophers. St. Thomas Aquinas (c. 1226–1274) is recognized for having synthesized Christian theology with Aristotelian metaphysics, and for his spirited philosophical defense of Christianity that was addressed to the non-Christian reader. In this collection, editor Dino Bigongiari has selected Aquinas’s key writings on politics, justice, social problems, and forms of government, including the philosopher’s main works: Regimine Principus (On Kinship) and The Summa Theologica. In an authoritative discussion of the historical background and evolution of St. Thomas Aquinas’s political ideas, Dr. Bigongiari’s commentary explains this philosopher’s enduring influence and legacy. Accompanying explanatory notes and a helpful glossary of unusual terms and familiar words help to make this practical volume an ideal text for students and general readers alike.