Empedocles and the Other Physiologists in Aristotle's Physics II 8 GIOVANNA R. GIARDINA / Catania /
Empedocles's theory of generation as model for the mechanistic argument inAristotle's Phys. II 8At the beginning of Phys. II 8 Aristotle announces the subject of the last two chapters of the second book as follows:We must explain then first why nature belongs to the class of causes which act for the sake of something; and then about the necessary and its place in nature, for all writers ascribe things to this cause, arguing that since the hot and the cold and the like are of such and such a kind, therefore certain things necessarily are and come to be -and if they mention any other cause (one friendship and strife, another mind), it is only to touch on it, and then good-bye to it.1 1 All translations of the Physics, unless otherwise noted, are by Hardie and Gaye in Barnes (1991).14 Giovanna R. Giardina / Catania / In this passage, after distinguishing nature as final cause from necessity, Aristotle explains that all philosophers consider necessity a cause by taking as examples the hot and cold and other things of a similar sort. The example makes it quite clear that Aristotle is referring to the material causes of which physiologists speak. Soon afterwards he notes that, although some philosophers have "touched upon" (ἁψάμενοι) another cause -for Love and Strife on the one hand and the Intellect, on the other, are moving causes for Aristotle -they immediately discarded them. This means that the philosophers in question believed that the material cause was sufficient to explain the fact that natural beings come about of necessity. In this regard, for example, Simplius argues that physiologists lead back beings to matter inasmuch as this coincides with necessity by stating precisely: ἀνάγουσι δὲ εἰς τὴν ὕλην ὡς ταύτην οὖσαν τὴν ἀνάγκην [...].From this passage of Aristotle it is also clear that the philosopher is thinking of Empedocles -to whom he implicitly refers when speaking of hot and cold 2 and Love and Strifeand Anaxagoras, whose notion of Intellect he mentions. This passage seems to have its counterpart in Metaph. I 7, 988a25 ff., where Aristotle mentions philosophers who took matter as the primary cause and explicitly refers to Anaxagoras and Empedocles. The two philosophers are once again mentioned together, 3 in relation both to their material causes and to the fact that they also "touched upon" (ἥψαντο) the moving cause. According to Philoponus, in Phys. 312,10 ff., Aristotle stated that some philosophers just "touched upon" the moving cause without believing that Love and Strife or Intellect are responsible for the generation of particular beings, in order to make it clear that these philosophers only posited a material cause: Anaxagoras posited the homeomeries and Empedocles hot and cold. Philoponus further adds that Plato had already raised this objection against his predecessors, since in Phd. 97b ff. he shows that Anaxagoras did not actually resort to Intellect, but simply explained the phenomen...