Hence we may, provisionally at least, assume that judgement likewise contains an a priori principle of its own, and that, since pleasure or displeasure is necessarily combined with the faculty of desire (be it antecedent to its principle, as with the lower desires, or, as with the higher, only supervening upon its determination by the moral law), it will effect a transition from the faculty of pure knowledge, ie from the realm of concepts of nature, to that of the concept of freedom, just as in its logical employment it makes possible the transition from understanding to reason.