   The De anima was fully translated into Arabic in the ninth century C.E., the Parva Naturalia partially translated, including those treatises relevant to our topic. Muslim authors had access to Arabic translations of Hellenistic commentaries on these works, particularly those done by Alexander of Aphrodisias (third century c.e.) and Themistius (fourth  century).[1] The views of the Muslim philosophers reflect these various sources, and are thus “Aristotelian” in an attenuated sense, particularly as concerns the role and entailments of the rational faculty.