πέτρην κοιλαίνει ρανὶς ὕδατος ἐνδελεχείῃ → constant dropping wears away a stone, constant dripping will wear away the hardest stone, little strokes fell big oaks, constant dripping wears the stone, constant dropping wears the stone, constant dripping will wear away a stone
v. trans.
Learn (from some one): P. and V. πυνθάνεσθαί (τινός τι), Ar. and V. ἐκπυνθάνεσθαί (τινός τι), V. πεύθεσθαί (τινός τι). Evoke, call forth: P. and V. ἐκκαλεῖσθαι, V. ἐξάγειν (Eur., Supp. 770).