 The natural order requires man to cultivate the ethical virtues, justice, temperance, courage, etc., after he really possesses the speculative virtues. Averroes adduces Alexander of Aphrodisias’s preface to his commentary of the Physics to support his statement. Alexander’s commentary is lost and, although Marwan Rashed has published the extant scholia of it, they are limited to explaining Books IV–VIII (Rashed 2011) and no hint concerning the content of the preface is given. Our only source is therefore Averroes’ account: