In beautiful Art the principle of the Idealism of purposiveness is still clearer. As in the case of the beautiful in Nature, an aesthetical Realism of this purposiveness cannot be perceived by sensations (for then the art would be only pleasant, not beautiful). But that the satisfaction produced by aesthetical Ideas must not depend on the attainment of definite purposes (as in mechanically designed art), and that consequently, in the very rationalism of the principle, the ideality of the purposes and not their reality must be fundamental, appears from the fact that beautiful Art, as such, must not be considered as a product of Understanding and Science, but of Genius, and therefore must get its rule through _aesthetical_ Ideas, which are essentially different from rational Ideas of definite purposes. Just as the _ideality_ of the objects of sense as phenomena is the only way of explaining the possibility of their forms being susceptible of _a priori_ determination, so the _idealism_ of purposiveness, in judging the beautiful in nature and art, is the only hypothesis under which Criticism can explain the possibility of a judgement of taste which demands _a priori_ validity for every one (without grounding on concepts the purposiveness that is represented in the Object). § 59. _Of Beauty as the symbol of Morality_ Intuitions are always required to establish the reality of our concepts. If the concepts are empirical, the intuitions are called _examples_. If they are pure concepts of Understanding, the intuitions are called _schemata_. If we desire to establish the objective reality of rational concepts, _i.e._ of Ideas, on behalf of theoretical cognition, then we are asking for something impossible, because absolutely no intuition can be given which shall be adequate to them. All _hypotyposis_ (presentation, _subjectio sub adspectum_), or sensible illustration, is twofold. It is either _schematical_, when to a concept comprehended by the Understanding the corresponding intuition is given _a priori_; or it is _symbolical_. In the latter case to a concept only thinkable by the Reason, to which no sensible intuition can be adequate, an intuition is supplied with which accords a procedure of the Judgement analogous to what it observes in schematism: it accords with it, that is, in respect of the rule of this procedure merely, not of the intuition itself; consequently in respect of the form of reflection merely, and not of its content.