διαμαρτάνειν τῆς ὁδοῦ

From LSJ

Θνητὸς πεφυκὼς τοὐπίσω πειρῶ βλέπειν → Homo natus id, quod instat, ut videas, age → Als sterblich Wesen mühe dich zu seh'n, was folgt

Menander, Monostichoi, 249

Greek > English (Woodhouse)

lose one's way, miss one's way