 Baltussen used this telling quotation to preface the chapter on Alexander of Aphrodisias in his monograph on Simplicius (2008: 107). It illustrates rather well that Simplicius by no means blindly followed “the commentator” (ho exêgêtês), as he calls him (In Phys. 1170.2, In Cael. 121.12 and 700.9), but was eager to carefully examine what Alexander had to say. It is known, for instance, that Simplicius had direct access to Alexander’s commentaries on the Physics, the Heavens, and the Categories. All of these are now lost, but a good deal can be reconstructed based on Simplicius’ testimony (see the overview in Kupreeva [2018: 387-388 and 443]). It can even be said without exaggeration that large parts of Simplicius’ oeuvre are, in fact, extended conversations with “Aristotle’s most famous exegete” (Baltussen 2016: 1). While Simplicius owes much to Alexander, his attitude towards him is ambiguous and comparable to how Syrianus deals with Alexander’s Commentary on the Metaphysics. Syrianus focuses especially on those passages where Aristotle attacks Pythagorean-Platonic metaphysics (esp. in books 13 and 14 of the Metaphysics), but in other cases, Alexander’s comments suffice (O’Meara &amp; Dillon 2008: 5). In other words, Alexander’s comments generally have great value; he is the more genuine (gnêsiôteros) commentator on Aristotle (In Phys. 80.15–16), especially as far as the Peripatetic tradition is concerned. Moreover, while Aristotle is the most genuine disciple of Plato (gnêsiôtatos), Alexander is the “most careful of Aristotle’s partisans” (epimelestatos spoudastês, In Cael. 378.20–22, borrowing the translation from Mueller).