  The class of FA theories includes some quite disparate views, which differ importantly in their fundamental motivation as well as in their scope and ambition. Although the renewed interest in FA theories arose from a dispute between quasi-realist expressivism (Blackburn 1993, Gibbard 1990) and anthropocentric, less-than-robust realism (McDowell 1998, Wiggins 1987), the metaethical differences between these two approaches seem less significant than their similarities (D'Arms and Jacobson 2006a). Rather, the most significant differences among FA theories concern the range of values they seek to analyze, the specific evaluative attitudes they adduce to do so, and whether or not they give explanatory priority to those evaluative attitudes. Three distinct varieties of FA theory are generic attitude theories, which aspire to give a general and non-circular theory of value in terms of some capacious notion such as desire or approval; sentimentalist theories that focus specifically on the sentiments and those values most intimately related to them, such as shame and the shameful; and sensibility theories, which deny the priority of evaluative attitudes in favor of an overtly circular account of value properties and evaluative responses.