But is Korsgaard right that willing an end necessarily involves prescribing that end to yourself?  Korsgaard argues that to will some end, you must at least take that end to be good in some sense, and you must also think that there is a reason for pursuing that end (246, 250–1).  But it seems possible for one to have some akratic end while failing to see anything even pro tanto good about it, or any reason to pursue it (Wallace 2006, §1).  And it’s clear that one could display instrumental rationality or irrationality relative to these akratic ends.  So, Korsgaard’s view seems unable to explain the authority of instrumental rationality with respect to such ends—ends that an agent has but doesn’t prescribe to herself.