St. Thomas Aquinas (AD 1225-1274) was a Dominican friar, philosopher, theologian, and is one of the Church’s greatest thinkers. He articulated the harmony of faith and reason and demonstrated in his work an ability to engage new ideas while remaining faithful to tradition. The writings of St. Thomas, especially his Summa theologiae and Summa contra gentiles, have a privileged position in the Catholic intellectual tradition and the philosophy curriculum at Borromeo Seminary.