to the quantity, and not to the quality of matter that its mechanical (not chemical) divisibility is related. But, what is more, this whole idea of divisibility by no means belongs to those inferences according to the principle of sufficient reason, from which, however, as the content of the hypothetical form, all cosmological Ideas ought to flow. For the assertion upon which Kant there relies, that the relation of the parts to the whole is that of the condition to the conditioned, thus a relation according to the principle of sufficient reason, is certainly an ingenious but yet a groundless sophism. That relation is rather based upon the principle of contradiction; for the whole is not through the part, nor the parts through the whole, but both are necessarily together because they are one, and their separation is only an arbitrary act. It depends upon this, according to the principle of contradiction, that if the parts are thought away, the whole is also thought away, and conversely; and by no means upon the fact that the parts as the reason conditioned the whole as the consequent, and that therefore, in accordance with the principle of sufficient reason, we were necessarily led to seek the ultimate parts, in order, as its reason, to understand from them the whole. Such great difficulties are here overcome by the love of symmetry.
(3.) The Idea of the first cause of the world would now quite properly come under the title of relation; but Kant must reserve this for the fourth title, that of modality, for which otherwise nothing would remain, and under which he forces this idea to come by saying that the contingent (i.e., according to his explanation, which is diametrically opposed to the truth, every consequent of its reason) becomes the necessary through the first cause. Therefore, for the sake of symmetry, the conception of freedom appears here as the third Idea. By this conception, however, as is distinctly stated in the observations on the thesis of the third conflict, what is really meant is only that Idea of the cause of the world which alone is admissible
