Plutarch, Alexander 8.1-2
“Aristotle, more than others, seems to me to have fostered in Alexander a love of healing. For he delighted not just in talking about medicine but he even used to help his sick friends and assign to them certain therapies and treatments, as one can see from his letters. He was by nature a lover of language, a lover of learning and a lover of reading. Because he believed and named the Iliad the roadmap of military excellence, he took a copy corrected by Aristotle which they called the “Box-Iliad” and he always had it with his knife lying under his pillow, as Onesikritos recounts. And when he did not have other books deep in Asia, he ordered Harpalos to send him some. Harpalos sent him the books of Philistos, the tragedies of Euripides, Sophocles and Aeschylus, and the dithyrambs of Telestos and Philoxenos.
In the beginning, Alexander revered Aristotle and said that he loved him no less than his father because he was alive thanks to one and living well thanks to the other. Later, he was rather suspicious of him, not so much that he harmed him at all, but his attachment and attention were not as eager as before—and this was a sign of their alienation.”
Δοκεῖ δέ μοι καὶ τὸ φιλιατρεῖν ᾿Αλεξάνδρῳ προστρίψασθαι μᾶλλον ἑτέρων ᾿Αριστοτέλης. οὐ γὰρ μόνον τὴν θεωρίαν ἠγάπησεν, ἀλλὰ καὶ νοσοῦσιν ἐβοήθει τοῖς φίλοις, καὶ συνέταττε θεραπείας τινὰς καὶ διαίτας, ὡς ἐκ τῶν ἐπιστολῶν λαβεῖν ἔστιν. ἦν δὲ καὶ φύσει φιλόλογος καὶ φιλομαθὴς καὶ φιλαναγνώστης, καὶ τὴν μὲν ᾿Ιλιάδα τῆς πολεμικῆς ἀρετῆς ἐφόδιον καὶ νομίζων καὶ ὀνομάζων, ἔλαβε μὲν ᾿Αριστοτέλους διορθώσαντος ἣν ἐκ τοῦ νάρθηκος καλοῦσιν, εἶχε δ’ ἀεὶ μετὰ τοῦ ἐγχειριδίου κειμένην ὑπὸ τὸ προσκεφάλαιον, ὡς ᾿Ονησίκριτος ἱστόρηκε (FGrH 134 F 38)· τῶν δ’ ἄλλων βιβλίων οὐκ εὐπορῶν ἐν τοῖς ἄνω τόποις, ῞Αρπαλον ἐκέλευσε πέμψαι, κἀκεῖνος ἔπεμψεν αὐτῷ τάς τε Φιλίστου βίβλους καὶ τῶν Εὐριπίδου καὶ Σοφοκλέους καὶ Αἰσχύλου τραγῳδιῶν συχνάς, καὶ Τελέστου καὶ Φιλοξένου διθυράμβους. ᾿Αριστοτέλην δὲ θαυμάζων ἐν ἀρχῇ καὶ ἀγαπῶν οὐχ ἧττον, ὡς αὐτὸς ἔλεγε, τοῦ πατρός, ὡς δι’ ἐκεῖνον μὲν ζῶν, διὰ τοῦτον δὲ καλῶς ζῶν, ὕστερον ὑποπτότερον ἔσχεν, οὐχ ὥστε ποιῆσαί τι κακόν, ἀλλ’ αἱ φιλοφροσύναι τὸ σφοδρὸν ἐκεῖνο καὶ στερκτικὸν οὐκ ἔχουσαι πρὸς αὐτόν, ἀλλοτριότητος ἐγένοντο τεκμήριον.