TY - BOOK AU - Erismann,Christophe TI - Generalis essentia: Erugena’s Theory of Ousia and the Issue of Universals PY - 2002///. N1 - 7 N2 - Eriugena’s philosophical enquiry – Categories, Universals, Individuation – centres around the notion of ousia, which is understood either as the general essence, the genus generalissimum, or as a particular substance. In opposition to Aristotle’s Categories John Scottus defends a radical realism; he sees individuation as accidental, and the individual as a bundle of universal properties. William of Champeaux will resume Eriugena’s doctrine in his so-called theory of Material Essence Realism UR - https://shs.cairn.info/journal-archives-d-histoire-doctrinale-et-litteraire-du-moyen-age-2002-1-page-7?lang=en ER -