Servais Pinckaers, O.P., is one of the preeminent Catholic moral theologians of his generation. His highly acclaimed works, among them The Sources of Christian Ethics, offer a thoroughly Thomistic and contemporary vision of the Christian moral life. They reflect the philosophical and spiritual prowess of a moral theologian who is estranged neither from philosophical ethics nor from dogmatic theology, neither from Scripture nor from spirituality. The first collection of its kind available in any language, this volume features the twenty most significant essays written by Pinckaers since his highly praised Sources. The essays offer profound reflections that are only possible by a contemporary moral theologian who knows the thought of Aquinas from lifelong study. Rather than taking a simply historical approach to Aquinas, Pinckaers seeks the basis of the intelligibility of the moral life, providing rich spiritual and theological insights along the way.