Οἷον καὶ φοβηθῆναι καὶ θαρρῆσαι καὶ ἐπιθυμῆσαι καὶ ὀργισθῆναι καὶ ἐλεῆσαι καὶ ὅλως ἡσθῆναι καὶ λυπηθῆναι ἔστι καὶ μᾶλλον καὶ ἧττον, καὶ ἀμφότερα οὐκ εὖ· τὸ δ’ ὅτε δεῖ καὶ ἐφ’ οἷς καὶ πρὸς οὓς καὶ οὗ ἕνεκα καὶ ὡς δεῖ, μέσον τε καὶ ἄριστον, ὅπερ ἐστὶ τῆς ἀρετῆς. Ὁμοίως δὲ καὶ περὶ τὰς πράξεις ἔστιν ὑπερβολὴ καὶ ἔλλειψις καὶ τὸ μέσον. Ἡ δ’ ἀρετὴ περὶ πάθη καὶ πράξεις ἐστίν, ἐν οἷς ἡ μὲν ὑπερβολὴ ἁμαρτάνεται καὶ ψέγεται καὶ ἡ ἔλλειψις, τὸ δὲ μέσον ἐπαινεῖται καὶ κατορθοῦται· ταῦτα δ’ ἄμφω τῆς ἀρετῆς. Μεσότης τις ἄρα ἐστὶν ἡ ἀρετή, στοχαστική γε οὖσα τοῦ μέσου. […] Ἔστιν ἄρα ἡ ἀρετὴ ἕξις προαιρετική, ἐν μεσότητι οὖσα τῇ πρὸς ἡμᾶς, ὡρισμένῃ λόγῳ καὶ ᾧ ἂν ὁ φρόνιμος ὁρίσειεν. Μεσότης δὲ δύο κακιῶν, τῆς μὲν καθ’ ὑπερβολὴν τῆς δὲ κατ’ ἔλλειψιν·καὶ ἔτι τῷ τὰς μὲν ἐλλείπειν τὰς δ’ ὑπερβάλλειν τοῦ δέοντος ἔν τε τοῖς πάθεσι καὶ ἐν ταῖς πράξεσι, τὴν δ’ ἀρετὴν τὸ μέσον καὶ εὑρίσκειν καὶ αἱρεῖσθαι.