Abstract
This paper defends the view that normative force depends on desire, by sketching an Argument from Voluntary Response which attempts to establish this dependence by appeal to the autonomous character of our experience of normative authority, and the voluntary character of our responses to it. I first offer an account of desiring as mentally aiming intrinsically at some end. I then argue that behaviour is only voluntary if it results from such aiming; hence all voluntary behaviour is produced by desire. Full-blooded responses to normativity are voluntary actions: motivation to act arises voluntarily from perception of reasons to act. This fits the desire-based model of normativity but not its rivals (in particular I take as a foil Stephen Darwall's discussion of Roberta). However this argument concludes merely that our responses to normativity are desire-based. I end with observations about how we can bridge the gap from the nature of response to normativity to the nature of normativity itself.