Valerie Tiberius

According to critics such as Bernard Williams, traditional ethical theories render it impossible to lead good and meaningful lives because they emphasize moral duty or the promotion of external values at the expense of the personal commitments that make our lives worth living from our own perspective. Responses to this criticism have not addressed the fundamental question about the proper relationship between a person's commitments to moral values and her commitments to non-moral or personal values. In this article, I suggest that we think about this relationship by reflecting on the way that a prudentially virtuous person who has commitments to both moral and non-moral values would regard these commitments. I argue that people with the virtue of balance do have reasons to act in accordance with their moral commitments, but that whether or not these reasons are overriding depends on the type of commitment in question.

In this paper I argue that the debate between subjective and objective theories of prudential value obscures the way in which elements of both are needed for a comprehensive theory of prudential value. I suggest that we characterize these two types of theory in terms of their different aims: procedural (or subjective) theories give an account of the necessary conditions for something to count as good for a person, while substantive (or objective) theories give an account of what is good for a person, given some set of necessary conditions. Characterizing the theories in this way allows us to see their mutual compatibility. To make this case, I assume that a theory of prudential value ought to be descriptively and normatively adequate. The criterion of descriptive adequacy requires that our theory explain the subject relativity of prudential value. I characterize subject relativity in terms of justifiability to subjects and I argue that certain procedural theories are well suited to meet this criterion. The criterion of normative adequacy requires that our theory be capable of guiding action and I argue that a certain kind of substantive theory is needed to meet this requirement.