St. Thomas Aquinas: Summa Theologica

St. Thomas Aquinas holding the Summa Theologica, Fra Angelico, Museo di San Marco dell'Angelico, Florence, Italy

Aquinas’ deep and exhaustive synthesis of Catholic doctrine and philosophic thought which continues to exert a dominant influence over Roman Catholic theology. Officially recognized as a Doctor of the Church, Aquinas labored on the Summa Theologica from 1265 to 1274, dying before its completion. Image links to Aquinas Institute translation. ISBN recommendation: 0870610635