Or The Prohibition of Aristotle in Medieval Theology
However, the system of Aristotle did not meet with universal welcome and approbation, though it could not be ignored. Largely because the Liber de Causis (until St. Thomas discovered the truth), the so-called Theologia Aristotelis (extracts from the Enneads of Plotinus) and the De secretis secretorum (composed by an Arab philosopher in the eleventh or beginning of the twelfth century) were wrongly attributed to Aristotle, the latter’s philosophy tended to appear in a false light. Moreover, the attribution of these books to Aristotle naturally made it appear that the Arab comentators were justified in their neo-Platonic interpretation. Hence it came about that in 1210 the Provincial Council of Paris, meeting under the presidency of Peter of Corbeil, Archbishop of Sens, forbad the public or private teaching of Aristotle’s ‘natural philosophy’ or of the commentaries on them. This prohibition was imposed under pain of excommunication and applied to the University of Paris. In all probability ‘natural philosophy’ included the metaphysics of Aristotle, since when the statutes of the university were sanctioned by Robert de Courcon, Papal Legate, in 1215 Aristotle’s works on metaphysics and natural philosophy, as well as compendia of these works and the doctrines of David of Dinant, Amalric of Bene and Maurice of Spain (probably Averroes, the Moor or Maurus) were prohibited, though the study of Aristotle’s logic was ordered. The study of the Ethics was not forbidden.
The reason for the prohibition was, as already indicated, largely due to the ascription to Aristotle of works which were not by him. Amalric of Bene, whose writings were included in the prohibition of 1215, maintained doctrines which were at variance with Christian teaching and which would naturally appear to find some support in the philosophy of Aristotle, if the latter were interpreted in the light of all the books attributed to him, while David of Dinant, the other heretical philosopher whose writings were prohibited, had actually appealed to the Metaphysics, which had been translated into Latin from the Greek version brought from Byzantium before 1210. To these considerations must be added the undoubted fact that Aristotle maintained the eternity of the world. It was, therefore, not unnatural that the Aristotelian system, especially when coupled with the philosophies of Daivd of Dinant, Amalric of Bene and Averroes, should appear as a danger to orthodoxy in the eyes of the traditionalists. The logic of Aristotle had long been in use, even if the full Organon had come into circulation only comparatively recently, but the complete metaphysical and cosmological teaching of Aristotle was a novelty, a novelty rendered all the more dangerous through association with heretical philosophies.
Frederick Coplestone, S.J. – A History of Philosophy, Volume 2 (Doubleday, 1993)