By 388 C.E., Augustine had broken with the Manichaeism of his early adulthood and wholeheartedly embraced Nicene Christianity as the tradition with which he would identify and within which he would find meaning. Yet conversion rarely, if ever, represents a clean and total break from the past. As Augustine defined and became a "Catholic" self, he also intently engaged with Manichaeism as a rival religious system. This second volume of Jason David...