Digital Object Identifier (DOI)
By defending the following views – that Aristotle identifies the generator and perhaps the obstacle remover (in an extended sense) as an essential cause of the natural sublunary elemental motion in Physics VIII 4; that this view is consistent with the view of Physics II 1 that the sublunary simple bodies have a principle of internal motion; and that the sublunary and the celestial elements have a nature in the very same way – I shall offer what has so far eluded Aristotelian commentators: a consistent interpretation of Aristotle's theory of the natural motions of the sublunary and also the celestial elements.
Katayama, Errol. “Soul and Elemental Motion in Aristotle’s Physics VIII 4.” Apeiron, Vol. 44, 2011, pp. 163-190. doi: 10.1515/apeiron.2011.012