Καὶ τῶν λεγόντων εὖ καλὸν τὸ μανθάνειν → It is a fine thing to learn from those who speak well
obtūrāmentum: (or optūrāmen-tum), i, n. id.,I a stopper, bung, Plin. 16, 8, 13, § 34; 33, 4, 21, § 75.