Dragos Calma is Associate Professor of Medieval Philosophy at University College Dublin, Ireland. His publications include Neoplatonism in the Middle Ages (2 vols, 2016) and Reading Proclus and the Book of Causes (3 vols, 2019-2022).Tobias Hoffmann is Professor of Medieval Philosophy at Sorbonne Université, France. He is the author of Free Will and the Rebel Angels in Medieval Philosophy (2021) and the editor of Weakness of Will from Plato to the Present (2008), A Companion to Angels in Medieval Philosophy (2012), and Aquinas and the Nicomachean Ethics (with Jörn Müller and Matthias Perkams, 2013).Giuseppe Thomas Vitale is Researcher II in the Classics Department at the Masaryk University, Czech Republic.