ἐὰν ᾖς φιλομαθής, ἔσει πολυμαθής → if you are studious, you will become learned
ἔμειν: (= εἷναι), Ἐπιγρ. Δωδώνης, Καραπ. Δωδ. XXXVII, 4.
v. εἰμί.