ὃ σὺ μισεῖς ἑτέρῳ μὴ ποιήσεις → don't do to others what you don't want them to do to you
P. and V. ἐπίκουρος, ὁ or ἡ, τιμωρός, ὁ or ἡ, παραστάτης, ὁ (Plato and Euripides, Fragment), P. βοηθός, ὁ or ἡ, Ar. and V. συμπαραστάτης, ὁ, V. βοηδρόμος, ὁ or ἡ, τιμάορος, ὁ or ἡ, ἀρωγός, ὁ or ἡ; see helper.
