Ask at the forum if you have an Ancient or Modern Greek query!
Δῶς μοι πᾶ στῶ καὶ τὰν γᾶν κινάσω → Give me a place to stand on, and I will move the Earth.
ἐπιστηρίζομαι: опираться (ἔν τινι Arst. и τινι Luc.).
