  The challenge for sentimentalism, by contrast, is to produce a theory of the sentiments on which they can be understood independently of the evaluative concepts that the theory uses them to analyze. Suggestions about how to do so have been given (Gibbard 1990), but no fully developed account has yet been offered. Moreover, sentimentalists who hold even a limited FA theory must give an account of the sentiments on which they are amenable to judgments of when they are and aren't fitting—unlike mere feelings—yet do not essentially involve the very concepts that they are meant to elucidate. The theory must avoid circularity while maintaining the resources to solve the wrong kind of reason problem.