This book combines selected essential philosophical passages from Thomas' Summa with footnotes and and explanations by Kreeft, a popular Thomist teacher and writer. Kreeft selected those passages from Thomas that are intrinsically important, non-techinical enough to be intelligible to modern readers, and most likely to be used in a class or by independent readers who want to study the Summa on their own. This book gives ready access to St. Thomas. Includes a glossary and an index.