Contains writings by two 13th-century Dominicans, both Doctors of the Church, St. Albert the Great (1200-1280), patron saint of natural scientists, and the 'common doctor,' St. Thomas Aquinas (1226-1274), both famous for their contributions to philosophy and theology.

St Thomas Aquinas (1225-1274) saw religion as part of the natural human propensity to worship. His ability to recognize the naturalness of this phenomenon and simultaneously to go beyond it, to explore spiritual revelation, makes his work fresh and highly readable today. While drawing on a strong distinction between theology and philosophy, Aquinas interleaved them intricately in his writings, which range from an examination of the structures of thought to the concept of God as the end of all things. This accessible new translation chooses substantial passages not only from the indispensable Summa Theologicae, but from many other works, fully illustrating the breadth and progression of Aquinas's philosophy. ABOUT THE SERIES: For over 100 years Oxford World's Classics has made available the widest range of literature from around the globe. Each affordable volume reflects Oxford's commitment to scholarship, providing the most accurate text plus a wealth of other valuable features, including expert introductions by leading authorities, helpful notes to clarify the text, up-to-date bibliographies for further study, and much more.

This volume contains new translations of the essential philosophical writings of Thomas Aquinas, from the Summa Theologiae and The Principles of Nature. The included texts represent the breadth of Aquinas’s thought, addressing causality, the fundamental principles of nature, the existence of God, how God can be known, how language can be used to describe God, human nature (including the nature of the soul, free will, and epistemology), happiness, ethics, and natural law. The goal of these translations is twofold: to allow Aquinas to speak for himself, but also to make his thought accessible to the contemporary reader without the burden of unnecessary adherence to convention. A thorough introduction to Aquinas and his ideas is included, as is a series of useful appendices connecting Aquinas’s arguments to those of Anselm, Scotus, Ockham, and others.

Chesterton's customary wit and engaging storytelling provide a brief but vivid profile. He focuses on the saint's life, rather than on theology, to illustrate Thomas's relevance to modern readers.

In his reflections on Christianity, Saint Thomas Aquinas forged a unique synthesis of ancient philosophy and medieval theology. Preoccupied with the relationship between faith and reason, he was influenced both by Aristotle's rational world view and by the powerful belief that wisdom and truth can ultimately only be reached through divine revelation. Thomas's writings, which contain highly influential statements of fundamental Christian doctrine, as well as observations on topics as diverse as political science, anti-Semitism and heresy, demonstrate the great range of his intellect and place him firmly among the greatest medieval philosophers.

Thomas's Commentary on the Book of Causes, composed during the first half of 1272, offers an extended view of his approach to Neoplatonic thought and functions as a guide to his metaphysics. Though long neglected and, until now, never translated into English, it deserves an equal place alongside his commentaries on Aristotle and Boethius. In addition to the extensive annotation, bibliography, and thorough introduction, this translation is accompanied by two valuable appendices. The first provides a translation of another version of proposition 29 of the Book of Causes, which was not known to St. Thomas. The second lists citations of the Book of Causes found in the works of St. Thomas and cross-references these to a list showing the works, and the exact location within them, where the citations can be found.