For, on the one hand, the spheres of these are not sufficiently sharply defined, and, on the other hand, they intersect each other in so many ways that one sphere is in part contained in many others, and we may pass at will from it to one or another of these, and from this sphere again to others, as we have already shown.
zeren aldez horien esferak sarritan ez dira behar bezain zorrozki determinatuak egoten, aldez batabestea ebakitzen dute hainbeste aldiz, non esfera bat alderditarki beste askoren baitan baitago, eta hartatik horietako batera edo bestera nahierara iragan daiteke eta handik beste batera, jadanik aurkeztu denez. Edo beste hitz batzuekin esateko: