That the greatest and the least of all things consist of discrete and continuous degrees, that is, degrees of height and of breadth, cannot be illustrated by examples from visible things because the least things are not Visible to the eyes, and the greatest things, which do stand out, do not appear to be distinguished into degrees. And on this account this matter does not allow of demonstration except by universals. And because angels are in wisdom from universals, and from that in knowledge of particulars, it is allowed to bring forward their utterances concerning these things.