An enthusiastic admirer of the philosophy of Thomas Aquinas professor and philosopher Peter Kreeft details the rational thought and precise literary talent that established Aquinas as the foremost thinker of his time—and as the most important philosopher for the almost two thousand years between Aristotle and Descartes. A landmark of philosophical achievement Aquinas’s Summa Theologica has given theologians and philosophers much to discuss since the thirteenth century. Peter Kreeft explains why.