Sextus Empiricus Pyrrhoniae Hypotyposes 2.20.223

[223] Furthermore, there is this to be said. ¹ The species are of this kind or of that kind: the genera of these species either are of both this kind and that kind, or of this kind but not of that kind, or neither of this kind nor of that kind. When, for instance, of the ‟somethings” (or particulars) some are corporeal others incorporeal, and some true others false, and some (it may be) white others black, and some very large others very small, and so on with the rest, the genus ‟something” (to take it for the sake of argument), which some regard as the summum genus, ² will either be all these or some of them or none.