This compact collection of philosophical texts from the Summa Theologica—on God, creation, the soul, human acts, moral good and evil, love, habits, virtue, and law—is presented newly translated in abridged form and cast in a modified version of the medieval quaestio. Included are only the most important objections and Aquinas’ replies; appeals to scriptural, theological, and philosophical authorities have been omitted. Unlike the ordering of the originals, questions and answers are here presented prior to objections and replies; the result is a sharp, rich, topically organized question-answer presentation of Aquinas’ major philosophical arguments within a brief compass. A general Introduction, headnotes, a glossary, an index, and a select bibliography offer expert guidance to the work of this major philosopher.