Blackburn's Expressivism -- Extending the Humean Tradition
Writing in Ruling Passions, Simon Blackburn picks up and continues the sentimentalist tradition in ethics made famous by David Hume and which has, since Hume's account, posed a serious challenge to all those seeking to find truth in moral claims, to treat moral beliefs as assertions of knowledge, that is, of fact. The idea that moral judgments are objectively grounded seems to stick with us when we make such judgments but the sentimentalist account, which makes our moral claims about expressing our feelings about things rather than about asserting facts we know about them, runs counter to what seems to be part of the actual practice of moral valuing. Blackburn's book aims to restore a sense of objectivity to moral judgments within the context of an expressivist (or, as he sometimes calls it, projectivist) account.
In a nutshell, he proposes that all moral claims of value can be understood as part of the psychological dimension of our lives in terms of how we interact with others and how we feel in the process of such interactions. For Blackburn, moral judgment is a matter of expressing our desires, preferences and so forth and valuing, he suggests, is just another activity-related mental state like these others. But such states are not discreet things nor are they reducible to any particular behavior or complex of behaviors of the actor. Rather, he suggests, they are elements in a "kind of web or field or force in which no single element has its own self-standing connection with action. Different beliefs and desires (and perhaps other states, such as emotions, attitudes, wishes, fantasies, fears and, of course, values) come together to issue in an action." (p. 52) On his view, then, valuing is just another mental feature like its fellows and not anything apart from them.
Thus, moral judgments are instances of having a particular mindset like our other mindsets associated with the mental state(s) in which we happen to be. As such, he supposes that asserting moral value is about navigating our way between our various mental states with claims about the goodness or badness of some action or thing, or about its rightness or wrongness, being equivalent to claims which express our feelings of the moment concerning current and longer term matters. Yet he wants to preserve the possibility of objectivity here . . .