Summa Theologiae Prima Secundae, 1-70 (Latin-English Opera Omnia)

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. In this volume St. Thomas gives a detailed account of human action, pleasure and pain, virtue and vice.