Augustine's Debate with Fortunatus the Manichean

Dr. Flowers reads through Augustine's debate with Fortunatus the Manichean prior to Augustine's conversion to compatibilistic determinism in order to demonstrate to Calvinists, like James White, that (1) Manichean doctrine opposed the Early Church's teachings on free will, (2) Manichean did appeal to some of the same texts as Calvinists do to support their views of man's innate inability and (3) that this issue preceded the Pelagian controversy.