 In light of this, we might describe Reid’s position as a proto-Rossian version of ethical intuitionism. While such a description is tempting, it would probably be misleading. For the parallels between Reid and Ross extend only so far. The most important difference between the two thinkers is this: Ross frames his project in the light of G. E. Moore’s Open Question Argument and Mill’s utilitarianism—two philosophical topics about which Reid knew nothing. Reid, by contrast, developed his version of ethical intuitionism within the context of a defense of a certain account of human agency, according to which each of us is endowed with “active power” which we can freely exercise. Reid believed that this account of human agency, when coupled with our best scientific knowledge, yields a form of non-naturalist ethical intuitionism. Call a position that grounds many of its core metaethical claims about the nature of moral reality in a particular view of human agency an agency-centered account. Agency-centered views tell us that in order to understand the nature of moral reality we must first examine the nature of agency. Reid’s is an agency-centered version of ethical intuitionism. Ross’s, by contrast, is not.