‘Accidie, depression and listlessness’ are the terms that Zangwill uses to describe the problems that an Internalist about motivation needs to accomodate or give an account for and not deny in any case [2007]. These seem to be problematic for rationality and any conception of motivation, or the relation between belief and action, that we may have.
I shall have more to say on this issue in the future, hopefully.
Michael
