  None of Reid's arguments for moral liberty are decisive. Each, however, lays bare a manner in which the notion of power is naturally construed to be implicated in our ordinary beliefs and our ordinary practices. While it remains possible that what is implicated is actually something less, something that can be described and explained without appeal to Reid's very strong notion of power, Reid's arguments nonetheless make clear what an account of human agency that does without power would need to account for if it is to be satisfactory. (For Reid on causation and free will, see Yaffe 2004.)