Δελφῖνα νήχεσθαι διδάσκεις: ἐπὶ τῶν ἐν ἐκείνοις τινὰ παιδοτριβούντων, ἐν οἷς ἤσκηται → Teaching dolphins to swim: is applied to those who are teaching something among people who are already well versed in it
Mandūbĭi: ōrum, m.,
I a people of Gallia Celtica, whose chief city was Alesia, Caes. B. G. 7, 68; 78.
Mandūbĭī,¹⁴ ōrum, m., Mandubiens [peuple de la Séquanaise, Franche-Comté actuelle] : Cæs. G. 7, 68.