In this article I try to solve an hermeneutical problem concerning some lines (2,7–24) of the Commentary to the Categories of John Philoponus. There, the commentator would seem committing an error, stating that Heraclitus was a disciple of Pyrrho by the expression «ὁ δὲ μαθητὴς αὐτοῦ Ἡράκλειτος (2,15)». I will present the edition of the text made by Busse with its translation and exegesis and, then, I will compare the passage in Philoponus with similar ones in other Neoplatonic commentators to the Categories . Hence, I will show how the speech of Philoponus is, contrary to what was previously thought, complete and efficient and I will try to propose possible solutions for the text.

Heraclitus | Pyrrho | Plato | Philoponus | Categories | Neoplatonism