Why would philosophers interested in the points or functions of our conceptual practices bother with genealogical explanations if they can focus directly on paradigmatic examples of the practices we now have?? To answer this question, I compare the method of pragmatic genealogy advocated by Edward Craig, Bernard Williams, and Miranda Fricker—a method whose singular combination of fictionalising and historicising has met with suspicion—with the simpler method of paradigm-based explanation. Fricker herself has recently moved towards paradigm-based explanation, arguing that it is (...) a more perspicuous way of reaping the same explanatory pay-off as pragmatic genealogy while dispensing with its fictionalising and historicising. My aim is to determine when and why the reverse movement from paradigm-based explanation to pragmatic genealogy remains warranted. I argue that the fictionalising and historicising of pragmatic genealogy is well motivated, and I outline three ways in which the method earns its keep: by successfully handling historically inflected practices which paradigm-based explanation cannot handle; by revealing and arguing for connections to generic needs we might otherwise miss; and by providing comprehensive views of practices that place and relate the respects in which they serve both generic and local needs. (shrink)

Why do we have a moral duty to fulfill promises? Hume offers what today is called a practice theory of the obligation of promises: he explains it by appeal to a social convention. His view has inspired more recent practice theories. All practice theories, including Hume’s, are assumed by contemporary philosophers to have a certain normative structure, in which the obligation to fulfill a promise is warranted or justified by a more fundamental moral purpose that is served by the social (...) practice of promising or adherence to it. Recent practice theories do have this structure, but, I argue, Hume’s own does not. Hume’s account, while it does trace the origin of promises to convention, is instead a causal explanation of the moral sentiments we have toward fulfillment and violation of promises, sentiments he regards as normative in themselves and not susceptible of further warrant. He explains how a collectively-invented social practice becomes morally obligatory for us to conform to, without deriving its moral authority from a more basic principle. I discuss one objection often made to practice theories that, in its application to Hume, presupposes the incorrect interpretation, and show that while it is telling for Hume’s descendants, for Hume it misses the mark. Instead I make a different challenge to Hume, and suggest how he might meet it. (shrink)