Summa Theologiae

We are now witnessing in the United States a revival of orthodox Catholic theological education, rooted explicitly in the theology of Saint Thomas Aquinas, as countless popes and Church documents recommend.

Surprisingly, however, there does not yet exist an affordable, high-quality edition of the saint’s greatest systematic work of dogmatic and moral theology, the Summa Theologiae. In particular, it is difficult and expensive to acquire an edition in the original language in which St. Thomas wrote—the Church’s mother tongue of Latin—and for many who are either just learning to read Latin or who wish to glance occasionally at an English translation while working with the original, there has never been an adequate and convenient bilingual edition of the Summa.

The Aquinas Institute is therefore proud to announce the publication of the Summa Theologiae in a bilingual edition with Latin and English in parallel columns.

     • Complete text in Latin and in English
     • English text based on the translation of the Fathers of the English Dominican Province, edited and corrected by the Institute’s faculty and staff
     • Hardcover, quality binding in an 8 volume set
     • Affordable price

The eight-volume set does not include the Supplementum at this time. The Aquinas Institute is in the last stages of preparing the text of the Supplementum for publication. At the same time, the Aquinas Institute has completed a translation of the fourth book of the Commentary on the Sentences, which is also being prepared for publication.