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A Summa of the Summa: The Essential Philosophical Passages of St. Thomas Aquinas’ Summa Theologica

By 2 authors ,
/ Ignatius / 1990

Runs on Windows, Mac, and mobile.



This unique book combines selected essential philosophical passages from Aquinas’ Summa with footnotes and explanations by Peter Kreeft. Kreeft selected those passages from Aquinas that are intrinsically important, non-technical enough to be intelligible to modern readers, and most likely to be used in a class or by an independent reader. Kreeft’s detailed footnotes explain difficult or technical passages and call attention to points of particular significance for the modern reader.

In the Logos edition, this volume is enhanced by amazing functionality. Important terms link to dictionaries, encyclopedias, and a wealth of other resources in your digital library. Perform powerful searches to find exactly what you’re looking for. Take the discussion with you using tablet and mobile apps. With Logos Bible Software, the most efficient and comprehensive research tools are in one place, so you get the most out of your study.

Save more when you purchase this book as part of the Peter Kreeft Bundle (27 vols.).

Key Features

  • Combines selected essential philosophical passages from Aquinas’ Summa
  • Presents passages from Aquinas that are intrinsically important as well as non-technical to modern readers
  • Includes footnotes that explain difficult or technical passages


  • Methodology: Theology As a Science
  • Proofs For the Existence of God
  • The Nature of God
  • Cosmology: Creation and Providence
  • Anthropology: Body and Soul
  • Epistemology and Psychology
  • Ethics

Product Details

About Peter Kreeft

Peter Kreeft is a philosopher, theologian, and apologist. His concise, lucid, wit-infused prose draws frequent comparisons to that of C. S. Lewis. He has written dozens of books on understanding philosophy, defending the Christian faith, and encouraging Catholics on difficult doctrine. He is currently professor of philosophy at Boston College.