Summa Theologiae Prima Secundae, 71-114

The most important work of the towering intellectual of the Middle Ages, Thomas Aquinas's Summa Theologiae remains one of the great seminal works of philosophy and theology, while extending to subjects as diverse as law and government, sacraments and liturgy, and psychology and ethics. This volume of the Summa Theologiae contains some of the most famous treatements of St. Thomas on sin, law, and grace.