Summa Contra Gentiles

One of the great works of Thomas Aquinas, probably written around 1264. Its purpose is in debate, but it was probably written as a manual of philosophy and theology for missionaries to the Moors. It provides much supporting material for the more famous Summa Theologicae. Its correct title is *Liber de veritate catholicae fidei contra errores infidelium* ("The Book on the Truth of the Catholic faith against the Errors of the Infidels")