The typical university philosophy course today often gives students the impression that philosophical knowledge is radically inconclusive. But philosophy has a very important place in Catholic theological tradition. St. Thomas Aquinas calls philosophy the handmaiden of theology. This Introduction to Philosophy is designed to provide young people with a foundation that will allow them to become familiar with some of the most basic concepts that one finds within the tradition of Catholic philosophy, thus enabling them to navigate slowly through the murky waters of our post-modern culture without sinking.