Abstract

For Thomas Reid, moral knowledge is a matter of having "good evidence" supplied by a sense-like moral faculty concerning moral reality, and the purpose of this work is to show that such a view can be both consistent and plausible. The first chapter attempts to characterize the state of moral epistemology and the assumptions that were considered uncontroversial when Reid wrote. The second chapter opens with a brief recounting of Reid's central claims about the moral sense and the progress of moral knowledge, and then seeks to describe the various problems that confront those who would explain and defend his views. Three features in particular of his account turn out to be in need clarification: his reasons for using the moral sense analogy, his understanding of the object apprehended by the moral faculty, and his conception of evidence. ;Reid's expectations about moral ontology are handled somewhat briefly in chapter 2, and the rest of the work concentrates on the more purely epistemological issues of evidence and the process of moral belief-formation. Chapter 2 concludes with an explanation of the difficulty Reid's text poses for understanding his doctrine of evidence, and the third chapter lays the foundation for resolving those difficulties by detailing an epistemological conception of evidence which parallels the legal conception of evidence in use in the Scottish courts of Reid's day. Chapter 4 builds on this foundation, developing Reid's general epistemological strategy and showing that Reid's various claims about evidence and self-evidence are best understood in light of the legal model detailed in chapter 3. ;The fifth chapter returns to Reid's claims about moral knowledge, explaining his understanding of the primary task of the moral faculty--practical deliberation--and defending his invocation of the moral sense analogy. With these clarifications secured, chapter 6 characterizes and attempts to make plausible Reid's account of moral knowledge, both concerning individual actions and the truth of moral principles. The final chapter sketches brief responses to twentieth-century worries about "moral sense" constructions, and offers a final assessment of the success of Reid's project.