for it beseems you not to practise childish ways, since you are no longer of such an age.
οὐ δέ τί σε χρὴ νηπιάας ὀχέειν , ἐπεὶ οὐκέτι τηλίκος ἐσσι .
οὐδέ οὐδέ τί σύ χρή νηπιάα ὀχέω , ἐπεί οὐκέτι τηλίκος εἰμί .