Abstract

Both the function of one’s conscience, as Thomas Aquinas understands it, and the work of casuistry in general involve deliberating about which universal moral principles are applicable in particular cases. Thus, understanding how conscience can function better also indicates how casuistry might be done better – both on Thomistic terms, at least. I claim that, given Aquinas’ descriptions of certain parts of prudence and the role of moral virtue in practical knowledge, understanding particular cases more as narratives, or parts of narratives, likely will result, all else being equal, in more accurate moral judgments of particular cases. This is especially important in two kinds of cases: first, cases in which Aquinas recognizes universal moral principles do not specify the means by which they are to be followed; second, cases in which the type-identity of an action – and thus the norms applicable to it – can be mistaken.