KLAUS CORCILIUS is Professor at the Eberhard Karls Universität Tübingen, Germany. He is author of: Aristoteles. De anima. Einführung, griechischer Text von Aurelius Förster (1912), Übersetzung und Kurzkommentar, Meiner, Hamburg, 2017; and of (with Oliver Primavesi) Aristoteles. De motu animalium, Meiner, Hamburg, 2018. Recent articles are: “Ideal Intellectual Cognition in Timaeus 37 A 2 – C 5,” Oxford Studies in Ancient Philosophy LIV (2018/1), 51-105, and "The Gate to Reality. Aristotle's Account of Perception in De Anima II 12", in C. Cohoe (ed.): Aristotle's De Anima. A Critical Guide, Cambridge University Press 2022, 122-154.