Summa Theologica by St. Thomas Aquinas Written from 1265-1274, the Summa Theologica is St. Thomas Aquinas' greatest work. Originally written for the "instruction of beginners," time has shown that all believers can come to learn from this enriching book. Organized systemically for the clearest way of "setting forth" the "sacred doctrine," Aquinas addresses many of Christianity's most pertinent q..
