some one may adduce, even a thesis of this kind, as that mixture is the difference of temperament, or local change, the difference of lation. All such particulars however, we must consider through the same, (for places intercommunicate,) since both the genus must necessarily be predicated more extensively than the difference, and must not partake of difference, but when it (genus) is thus assigned, neither of what have been mentioned can possibly occur; for it will be spoken of fewer things, and genus will partake of difference.
Besides, if no difference of genera is predicated of the assigned species, neither will the genus be predicated, thus neither the odd, nor the even, is predicated of the soul; wherefore neither is number. Moreover, if species is prior naturally, and co-subverts the genus, (it will not be genus,) for the contrary appears to be true. Once more, if is possible (for species), to leave the proposed genus or difference, as to be moved, the soul, or the true and the false, opinion, neither of these named would be genus or difference, for genus and difference are apparently consequent so long as there is species.
Chapter 3
Moreover, we should observe whether what is laid down in the genus, partakes or can partake, of something contrary to genus, since the same thing, will, at the same time, partake of contraries, as it (species) never leaves genus, but partakes, or is capable of partaking, of what is contrary. Besides, whether species communicates with any
