Δελφῖνα νήχεσθαι διδάσκεις: ἐπὶ τῶν ἐν ἐκείνοις τινὰ παιδοτριβούντων, ἐν οἷς ἤσκηται → Teaching dolphins to swim: is applied to those who are teachingsomethingamongpeople who are alreadywell versed in it
καθέω: (только 3 л. sing. aor. καθεῖσε, 3 л. pl. aor. κάθεσσαν, 3 л. pl. conjct. καθέσωσι; med.: 3 л. sing. aor. καθέσσατο и 3 л. pl. aor. κᾰθέσσαντο) Hom., Pind., Anacr., Thuc. = καθίζω.