This paper explores Franz Brentano’s metaethics by comparing it to Thomas Reid’s. Brentano and Reid share a commitment to moral realism and they are both aptly classified as intuitionists concerning moral knowledge and the nature of moral judgment. However, their respective versions of intuitionism are importantly different, in ways that reflect more general differences between their respective epistemological views. Sections III and IV of the paper focus more exclusively on Brentano’s metaethics and some of its unorthodox features. These features tie (...) in with notorious difficulties for moral realism concerning the nature of moral truth and the relation between moral judgment and motivation to act. (shrink)