About the soul Books ; ESOTERICS Author: Aristotle Title: About the soul Publishing house: World of books, Literature. Year: 2007. Format: Pdf Size: 1. 3 MB. Aristotle understood more than anyone the importance of the question of the categorial belonging of the soul. First of all, he said, we must determine which category the soul belongs to. Is it matter or form, quality or quantity, existing in possibility or existing in reality?And here Aristotle grasps the very essence: the main difficulty in the question of the soul is to determine its categorical belonging......... and the soul (dt) .......... [ com 85