Pavel Gregorić is a Senior Research Fellow in the Institute of Philosophy in Zagreb, working on ancient, Renaissance and early modern philosophy. He has published Aristotle on the Common Sense (2007), and is a co-editor of the volume Encounters with Aristotelian Philosophy of Mind (2020) and a contributor to Hackett's forthcoming new translation of Aristotle complete works. George Karamanolis is an Associate Professor in the Department of Philosophy at the University of Vienna. He has published Plato and Aristotle in Agreement? Platonists on Aristotle from Antiochus to Porphyry (2006) and The Philosophy of Early Christianity (2013), and edited Studies on Porphyry (with Anne Sheppard, 2007) and The Aporetic Tradition in Ancient Philosophy (with Vasilis Politis, Cambridge, 2017).