What is the main conflict in Introduction to Saint Thomas Aquinas, Ed., with an Introd. by Anton C. Pegis by Saint Thomas Aquinas?

Aquinas is one of the great theological philosophers. Here, through the power of translation, are the basic tenets of his philosophical thought. Unlike his philosophical comrade Augustine, whose Grecian predecessor was the pagan philosopher Plato, Aquinas is the spiritual descendant of the pagan philosopher Aristotle.