  Blemmydes’ compendia draw for the most part on Aristotle and his late antique commentators, but occasionally other influences are in evidence, such as that of John of Damascus in the Epitome logica and that of the Stoic cosmologist Cleomedes in the Epitome physica. Besides these two compendia, Blemmydes composed two anthropological works, De anima and De corpore, and two short treatises on a much-discussed question of both theological and philosophical import, Against the Predetermination of the Terminus of Life, in which he defends the causal connection between moral choice and life span, although he proceeds mostly by appeal to authority.