Inquiry into the history of practices in the manner of Foucault's philosophical genealogy requires that we distinguish between practical action, on the one hand, and mere behavior, on the other. The need for this distinction may help explicate an aspect of Foucault's philosophical genealogy that might otherwise appear misplaced, namely his attention to rationalities and its attendant conceptual material. This article shows how a genealogical attention to practice goes hand in hand with an attention to the role of the conceptual (...) within our practices. This is done by first drawing on considerations furnished by a Wittgensteinean branch in analytic philosophy recently developed by Robert Brandom. With an account of conceptual normativity and reflexivity in hand, the article turns second to a crucial site of conceptual self-transformation by drawing on work from a particular Foucauldian lineage developed in the work of Arnold Davidson. Davidson's work helps us understand the crucial status of concepts of persons for any historical inquiry into practices. (shrink)