ὃ σὺ μισεῖς ἑτέρῳ μὴ ποιήσεις → don't do to others what you don't want them to do to you
ἐφεστῶσα, ἐφεστός;part. pf. att. de ἐφίστημι.
ἐφεστώς: ἐφεστῶσα, ἐφεστός атт. part. pf. к ἐφίστημι.