Abstract

What I have tried to do is elicit and disarm the motivations most likely to give rise to the [counterexamples to the principle crucial to Williams' argument]. Only one of these motivations is still viable: the instrumentalist theory of practical reasoning. But because internalism and instrumentalism are, as it has turned out, so very tightly linked, in disarming the motivations for the objection, I have also inventoried, and given reason to reject, what I have found to be the most common conversationally adduced defences of instrumentalism: the appeals to imagination, to dispositional desires, and so on. The issue remaining from the debate over internalism turns out to be whether [instrumentalism is false---i.e. whether] there are patterns of practical inference that are not directed toward the satisfaction of desire.