Plato, Meno 70a

ἔχεις μοι εἰπεῖν, ὦ Σώκρατες, ἆρα διδακτὸν ἡ ἀρετή; ἢ οὐ διδακτὸν ἀλλʼ ἀσκητόν; ἢ οὔτε ἀσκητὸν οὔτε μαθητόν, ἀλλὰ φύσει παραγίγνεται τοῖς ἀνθρώποις ἢ ἄλλῳ τινὶ τρόπῳ; ὦ Μένων, πρὸ τοῦ μὲν Θετταλοὶ εὐδόκιμοι ἦσαν ἐν τοῖς Ἕλλησιν καὶ ἐθαυμάζοντο ἐφʼ ἱππικῇ τε καὶ πλούτῳ,

Can you tell me, Socrates, whether virtue can be taught, or is acquired by practice, not teaching? Or if neither by practice nor by learning, whether it comes to mankind by nature or in some other way? Meno, of old the Thessalians were famous and admired among the Greeks for their riding and