 One way to avoid the key problems of the previous accounts is to posit membership in the human species as a sufficient condition for FMS. This is not the view that the human species itself has FMS, but rather that membership in the species gives an individual FMS. Feinberg (1980) discusses this view, whereas Dworkin (1993, ch. 3) actually posits it, although without distinguishing between this version and the modified version addressed below. Benn (1967, pp. 69–71) considers membership in the human species necessary and sufficient for FMS. Note that belonging to the human species is a relational feature (the relation of being a member of a kind), unlike the features invoked by the accounts considered thus far.