Abstract

This dissertation urges philosophers to reevaluate how they frame the question of the rationality of moral action. Its motivation is the thought that approaches to the question have suffered from mistakes in the relata. On the part of theories of practical reason, philosophers adopt an inadequate theory of action. On the part of moral theory, philosophers hold narrow conceptions of moral worth. As a result, not only have we failed to vindicate the thought that the moral agent acts well, our conception of moral action invites the charge of remoteness from human life. ;In response, I propose we abandon some dogmas of moral psychology. My rethinking proceeds, negatively, by rejecting desire-based instrumentalist accounts of practical rationality and, positively, from renewed attention to virtuous action, a focus some suggest might counteract the remoteness of which morality's critics complain. I attend to the virtue of true friendship to defend non-instrumental conceptions of moral psychology and practical rationality that bring both into closer contact with commonsense norms of admirable action as they bear on what agents have reason to do. ;Chapter 1 introduces desire-based instrumentalism as the theory proponents claim is best suited to avoid the problem of the alienation of practical reason. I argue their claim does not survive scrutiny. ;In Chapter 2 I distinguish between explicit desiderative content and desiderative framing versions of desire-based instrumentalism. I argue the former is false to the content of deliberation and that arguments from the nature of intentional action fail to support the latter. ;Chapter 3 examines the evaluatively non-detachable quality of the descriptions under which actions performed out of friendship are intentional. I develop an account of virtuous action as nonteleologically ally motivated action understood in terms not of what it brings about but of its expressive quality. I argue action's expressive quality is key to assessing moral worth and rationality. ;Chapter 4 develops my account of virtuous agents' reasons for acting and asks what earns expressive action its claim to rationality. I argue certain actions inherit their rationality by expressing dispositions to regulate practical attitudes , dispositions themselves rationally assessable.