EN 1106a24-29 To investigate the nature of virtue from the perspective of mean

πῶς δὲ τοῦτ' ἔσται, ἤδη μὲν εἰρήκαμεν, ἔτι δὲ καὶ ὧδ' ἔσται φανερόν, ἐὰν θεωρήσωμεν ποία τίς ἐστιν ἡ φύσις αὐτῆς. ἐν παντὶ δὴ συνεχεῖ καὶ διαιρετῷ ἔστι λαβεῖν τὸ μὲν πλεῖον τὸ δ' ἔλαττον τὸ δ' ἴσον, καὶ ταῦτα ἢ κατ' αὐτὸ τὸ πρᾶγμα ἢ πρὸς ἡμᾶς· τὸ δ' ἴσον μέσον τι ὑπερβολῆς καὶ ἐλλείψεως.