 Ethicists of belief who are not value monists often claim that there is a way of ordering norms or types of norms in terms of the relative strength or relative ease with which their claims on us can be defeated. This means that in a given situation there will be a determinate answer about what one ought to believe “all things considered.” Others argue, however, that at least some of the norms are incommensurable, and that in many cases there will simply be no answer to the question of what it is right to believe all things considered (Feldman 2000). Still others think that one category of norm collapses into another and that this can give us an all things considered conclusion (for discussion of whether epistemic rationality collapses into prudential rationality, for example, see Kelly 2003)