  One of the most important aspects of Petrizi’s philosophy is his epistemology. It has only recently been reconstructed and systematically researched in the light of the medieval discussion of the essence of thought (cf. Iremadze, Konzeptionen, pp. 161–241). In his epistemology, Petrizi emphasizes the productive power of (human) reason, which is capable of the real positing of being as such and is thus a determinative principle of being.