Our skeptic did not distinguish these two kinds of judgments, as he should have, and for that reason held this augmentation of concepts out of themselves and the parthenogenesis, so to speak, of our understanding (together with rea son), without impregnation by experience, to be impossible; thus he held all of its supposedly a priori principles' to be merely imagined, and found that they are nothing but a custom arising from experience and its laws, thus are merely empirical,.e., intrinsically contingent rules, to which we ascribe a supposed necessity and universality.