From Euripides’ Helen:
ὅ τι θεὸς ἢ μὴ θεὸς ἢ τὸ μέσον,
τίς φησ᾽ ἐρευνήσας βροτῶν
μακρότατον πέρας ηὑρεν
ὃς τὰ θεῶν ἐσορᾷ
δεῦρο καὶ αὖθις ἐκεῖσε
καὶ πάλιν ἀντιλόγοις
πηδῶντ᾽ ἀνελπίστοις τύχαις; (1137-42)
What is God, what is not God, and what lies between –
Who among mortals can search out and tell?
The farthest limit has he found,
who looks upon the things sent by the gods
as springing here and now there
and back again with contradictory
and unanticipated fortunes.