Abstract

It is a rather remarkable fact that in most discussions of Aquinas’s ethics, Q. 21 of the De Veritate which deals with Aquinas’s notion of Good, is almost entirely overlooked. For example D. J. O’Connor’s book Aquinas and Natural Law refers only once to the De Veritate and that is not a reference to Q. 21. Even the massive work of Gilson, The Christian Philosophy of St. Thomas Aquinas, in the entire third section which deals with Aquinas’s moral theory has only six references to the De Veritate and again none are to Q. 21. H. J. McCloskey in Meta-Ethics and Normative Ethics, provides what he considers two definitive repudiations of Aquinas’s theory but there is no mention or reference to the De Veritate. There may be a reason for this. Thomists like Gilson may not be attuned to or interested in answering the specific problems which contemporary ethical theorists address themselves to, while ethical theorists like O’Connor seem to depend upon traditional Thomistic accounts to locate the pertinent passages in Aquinas’s ethical writings, accounts which follow the order of one or other of the Summas. Be that as it may, some of the most illuminating sections of Aquinas dealing with ethical-theoretical issues are to be found in Question 21 of the De Veritate, for in this question is found a definition of the good as well as explanations of this definition. Consider the following passages where Aquinas lists what seem to be necessary conditions for calling something good.