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
impér. ao. de αἴρω.
ἆρον: προστ. αορ. αʹ του αἴρω.
ἆρον: imper. aor. к αἴρω.