Don't you know that a good and excellent person does nothing for the sake of appearances, but only for the sake of having acted right?
οὐκ οἶσθ᾿, ὅτι ἀνὴρ καλὸς κἀγαθὸς οὐδὲν ποιεῖ τοῦ δόξαι ἕνεκα, ἀλλὰ τοῦ πεπρᾶχθαι καλῶς
Original text (Ancient Greek)