Yet more, (we must observe) whether the assigned genus is stated to be in subject species, as whiteness in snow, so that it will evidently not be genus, for genus is predicated alone of the subject species.
Notice, moreover, whether genus and species are not synonymous, as genus is synonymously predicated of all the species.
Besides, (it is erroneous) when there being a contrary both to species and to genus, the better of the contraries is referred to the worse genus, for the remainder will happen to be in the remainder, since contraries are in contrary genera, so that the better will be in the worse, and the worse in the better, yet the genus of the better, seems also to be better. Also, if when the same species subsists similarly, with regard to both, it is referred to the worse, and not to the better genus, e. g. that the soul is motion or what is moved. For the same (soul) appears equally to possess the power of resting and moving, so that if permanency be better, it ought to be referred to this genus.
Again, the subverter (may argue) from the more and less, if genus accepts the more, but species does not, neither itself, nor what is enunciated according to it. For instance, if virtue accepts the more, justice also, and the just man (do so), for one is said to be more just than another, if then the assigned genus accepts the more, but the species does not, neither itself, nor what is enunciated according to it, the thing assigned cannot be genus.
Again, if what seems to be the more or similarly, is not genus, it is evident that neither is the
