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
ἀπάγω, τρέπω, ἀποσπάω, μεθορμίζω, μετορμίζω, ἀντισπάω, ἀνθέλκω, ἀποσχίζω, ἀνίστημι