III. To the Confirmation of the Opinion

42. As to the confirmation of the opinion [n.6], it is plain that commonness and singularity are not related to nature as existence in the intellect and true existence outside the soul are related, because commonness belongs to nature outside the intellect as likewise does singularity - and commonness belongs of itself to nature while singularity belongs to nature through something in reality that contracts nature, but universality does not belong to reality of itself. And so I concede that one must look for a cause of universality, but one must not look for a cause of commonness other than nature itself; and once commonness is posited in nature according to its proper entity and unity, then one must necessarily look for a cause of singularity, a cause that super-adds something to the nature to which it belongs [sc. which cause is what is looked for in the following sections, nn.43-211].