 An influential alternative way of characterizing what the ethical supervenes on begins with a distinction in language. Some philosophers think that we can intuitively distinguish between broadly evaluative predicates (like ‘is right’, ‘is good’, ‘is virtuous’, etc.) from descriptive predicates (like ‘is round’, ‘is accelerating’, ‘is a badger’ etc.). We can then ask about the relationship between the properties that are picked out by these two sets of predicates. Frank Jackson has argued that this allows us to state an ethical supervenience thesis: there is no possible difference that can be stated using evaluative predicates between states that are identical with respect to all properties picked out by descriptive predicates (1998, 118–125).