§8.10.1Ἡ μετάνοιά ἐστιν ἐπίληψίς τις ἑαυτοῦ ὡς χρήσιμόν τι παρεικότος· τὸ δὲ χρήσιμον ἀγαθόν τι δεῖ εἶναι καὶ ἐπιμελητέον αὐτοῦ τῷ καλῷ καὶ ἀγαθῷ ἀνδρί· οὐδεὶς δ’ ἂν καλὸς καὶ ἀγαθὸς ἀνὴρ μετανοήσειεν ἐπὶ τῷ ἡδονήν τινα παρεικέναι· οὔτε ἄρα· χρήσιμον οὔτε ἀγαθὸν ἡδονή.
Repentance is a kind of self-reproof for having passed by something useful; but what is useful must be something good, and it must be cared for by the good and honorable man; yet no good and honorable man would repent of having passed by some pleasure; therefore, pleasure is neither useful nor good.