ὃ σὺ μισεῖς ἑτέρῳ μὴ ποιήσεις → don't do to others what you don't want them to do to you
platform for speaking: Ar. and P. βῆμα, τό, V. βάθρον, τό (Euripides, Iphigenia in Tauris 962).
βάθρον, βῆμα
