 Avicenna dedicates two chapters of the Physics of The Cure (2.2 &amp; 2.3) to motion’s relation to the categories: one to motion’s genus and the other to the species of motion. As for the first issue, Avicenna attempts to identify to which category motion generically belongs inasmuch as the categories supposedly provided the most generic ways that (material) things might exist. While in the end he concedes that given the canonical ten categories, motion seems most aptly to fall under passion (Gk. paskhein; Ar. infiʿāl), he is also uncertain whether Aristotle’s ten categories are truly exhaustive and at least suggests that motion might be sui generis (Avicenna, [Ph], 2.2 [8]; Hasnawi 2004; and McGinnis 2006a). 