The neo-Thomistic theory of man, value and society teaches that we know man's social nature, made by God, to be patterned according to natural law to seek the common good. This theory has important epistemological and metaphysical presuppositions and implications, which were refined with the development of Scholastic precision and distinctions. The account is not philosophically innocent and one must try to see in more detail what is known, where we get knowledge, what shape it takes, what it is good for, and what we do to acquire knowledge.