But that which constitutes the specific reality (forma) of a human body is, that its parts communicate their several motions one to another in a certain fixed proportion (Def. before Lemma iv. after II.
ikusi behar baita). Beraz, Giza gorputzeko atalek elkarren artean duten mugimendu eta gelditasun erlazioa iraunarazten duenak, giza Gorputzaren forma bera iraunarazten du; eta, ondorioz, (2. Zat., 3.