Abstract
Metaethicists typically develop and assess their theories—in part—on the basis of the consistency of those theories with “ordinary” first-order normative judgment. They are, in this sense, “methodologically conservative.” This article shows that this methodologically conservative approach obstructs a proper assessment of the debate between internalists and externalists. Specifically, it obstructs one of the most promising readings of internalism. This is a reading—owed to Bernard Williams—in which internalism is part of a practically and politically motivated revision of the assessment of action. The article uses this case study to highlight the role of methodological conservatism in contemporary metaethics more generally