οὐκ ἔστιν αἰσχρὸν ἀγνοοῦντα μανθάνειν → there is no shame in, not knowing, inquiring
P. and V. οἰκεῖος, V. ἐμφύλιος, ἔμφυλος, ἐγγενής.
internĕcīnē: adv., see the foll. art.
