οὐκ ἔστιν αἰσχρὸν ἀγνοοῦντα μανθάνειν → there is no shame in, not knowing, inquiring
necdum: v. neque.
necdum¹⁰ et nĕquĕdum, et pas encore : Cic. Att. 6, 1, 14 ; 6, 3, 2