Abstract

The purpose of this paper is 1) to focus on the last section of the In Parmenidem, analyzing Proclus’ reflection on the relationship between the First God and what he calls the “axioms of contradiction”, accompanied by an attempt to harmonize in a subordinate sense the Aristotelian perspective with the Platonic one; 2) to analyze the reception of this idea in Nicholas of Cusa, the first Latin author to be systematically influenced by the In Parmenidem. It will be possible to show how Cusanus develops a perspective that, on the one hand, finds its explicit antecedent in Proclus and, on the other, how he radicalizes Proclus’ perspective, developing theoretical tensions that we can find unsystematically in Proclus’ own thought. Proclus is aware that the Principle of all reality—and of science itself—must be conceived as in itself unknowable. At the same time, he seeks to save the ability of human knowledge to describe reality. Starting from an idea of the relationship between God and the laws of contradiction close to that of Proclus, Cusanus develops an epistemology that, on the one hand, recognizes the principle of contradiction as the ultimate principle of reason and, on the other hand, comes to the conclusion of a separation between thought and reality outside thought.