 The argumentative strategy is adapted from Sellars (1997, pp. 37–41; it bears comparison to related arguments in Nagel, 1970, pp. 29–31, and Brandom, 2001). A core practice, in this case of reason-giving, is identified, one that adduces only actions (and not psychological states); Thompson then exhibits the point of introducing apparently psychological locutions (such as “because I want to…”) into such a practice. The explanation is supposed to demonstrate that these locutions do not really name anything on the order of desires or intentions, but are rather a roundabout way of conveying information about the progress of an ongoing course of action. We will first describe the way Thompson sets up the core practice, and then briefly reconstruct his argument for non-psychologistic renderings of apparently psychologically oriented reason locutions. 