A keen admirer from the viewpoint of Thomas Aquinas, teacher and philosopher Peter Kreeft information the rational thought and exact literary talent that established Aquinas as the most important thinker of his time-and as the utmost essential philosopher for the nearly two thousand years between Aristotle and Descartes. A landmark of philosophical accomplishment, Aquinas’s Summa Theologica provides provided theologians and philosophers very much to discuss since the thirteenth century. Peter Kreeft clarifies why.