ὃ σὺ μισεῖς ἑτέρῳ μὴ ποιήσεις → don't do to others what you don't want them to do to you
ἐκτενέωρ: ἐκτενέως, Ἐπιγρ. Ὀλυμπίας ἐν Arch. Ztg. 1876, σ. 183.