Golden rule:
'Do as you would be done by' - universal across all faiths....
Christianity: Therefore all things whatsoever ye would that men should do to you, do ye even so to them: for this is the law of the prophets. (Matthew, 7:12)
Judaism: What is hateful to you, do not to your fellowmen. That is the entire Law; all the rest is commentary. (Talmud, Shabbat, 31a)
Brahmanism: This is the sum of duty; do naught unto others which would cause you pain if done to you. (Mahabharata, 5, 1517)
Buddhism: Hurt not others in ways that you yourself would find hurtful. (Udana-Varga, 5, 18)
Confucianism: Surely it is the maxim of loving-kindness: Do not unto others that you would not have them do unto you. (Analects, 15, 23)
Taoism: Regard you neighbor's gain as your own gain and your neighbor's loss as your own loss. (T'ai Shang Kan Ying P'ien)
Zoroastrianism: That nature alone is good which refrains from doing unto another whatsoever is not good for itself. (Dadistan-i-dinik, 94, 5)
Islam: No one of you is a believer until he desires for his brother that which he desires for himself. (Sunnah)
(source:
https://everything2.com/title/Do+unto+others+as+you+would+have+others+do+unto+you)