Ask at the forum if you have an Ancient or Modern Greek query!
Οὐκ ἔστιν αἰσχρὸν ἀγνοοῦντα μανθάνειν → Non est inhonestum ea, quae nescis, discere → nicht schändlich ist's, dass einer lernt, was er nicht weiß
P. and V. ἄκρος (Soph., Ajax 1277). See foremost.