James H. P. Lewis

Metaethical realists and anti‐realists alike have typically assumed that deliberation about what to do is, at least sometimes, properly settled by the agent's evaluative attitudes—what she wants, likes, or values—rather than by any objective source of value out in the world. I argue that this picture of deliberation is not one that the deliberating agent herself can accept. Seen from within the first‐person perspective, the agent's own evaluative attitudes are not encountered as descriptive psychological facts, but are rather “transparent” to the external world, conceived as a place already suffused with normative significance: they are her finding the relevant parts of the world to be desirable, valuable, and so on. And from the agent's own point of view, these attitudes can do the normative work involved in settling deliberation only because and insofar as they are understood as in this way a warranted response to this desirability or value. Attitudes that the agent does not experience as transparent in this way are attitudes from which she is alienated, and as such she cannot understand them as authoritative over her deliberation. What this means, I argue, is that deliberation about what to do involves a commitment to a particularly substantive form of metaethical realism.