Confucianism
Do not do to others what you would not like yourself. Then there will be no resentment against you, either in the family or in the state. Analects 12:2
Buddhism
Hurt not others in ways that you yourself would find hurtful. Udana-Varga 5,1
Christianity
All things whatsoever ye would that men should do to you, do ye so to them; for this is the law and the prophets. Matthew 7:12
Hinduism
This is the sum of duty; do naught onto others what you would not have them do unto you. Mahabharata 5,1517
Islam
No one of you is a believer until he desires for his brother that which he desires for himself. Sunnah
Judaism
What is hateful to you, do not do to your fellowman. This is the entire Law; all the rest is commentary. Talmud, Shabbat 3id
Taoism
Regard your neighbor's gain as your gain, and your neighbor's loss as your own loss. Tai Shang Kan Yin P'ien
Zoroastrianism
That nature alone is good which refrains from doing another whatsoever is not good for itself. Dadisten-I-dinik, 94,5

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"Never argue with an idiot, they'll just bring you
down to their level and beat you with experience." (c)TB

Do not judge, or you too will be judged. For in the same way you judge others, you will be judged, and with the measure you use, it will be measured to you. -- Matthew 7:1

So in everything, do to others what you would have them do to you, for this sums up the Law and the Prophets. -- Matthew 7:12

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'I have never let my schooling interfere with my education.'
-- Mark Twain

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"Never argue with an idiot, they'll just bring you
down to their level and beat you with experience." (c)TB