 Judgments of beauty involve reference to the idea of necessity, in the following sense: in taking my judgment of taste to be universally valid, I take it, not that everyone who perceives the object will share my pleasure in it and (relatedly) agree with my judgment, but that everyone ought to do so. I take it, then, that my pleasure stands in a “necessary” relation to the object which elicits it, where the necessity here can be described (though Kant himself does not use the term) as normative. But, as in the case of universal validity, the necessity is not based on concepts or rules (at least, not concepts or rules that are determinate, that is, of a kind which figure in cognition; as noted earlier in this section, Kant describes it, in the Antinomy of Taste, as resting on an “indeterminate concept”). Kant characterizes the necessity more positively by saying that it is “exemplary”, in the sense that one’s judgment itself serves as an example of how everyone ought to judge (§18, 237). He also says that it is based on a “common sense” (sensus communis), defined as a subjective principle which allows us to judge by feeling rather than concepts (§20).