Taoism: Regard your neighbor's gain as your own gain and your neighbor's loss as your own loss.
Christianity: In everything, do unto others as you would have them do to you; for this is the law and the prophets
Shinto: Do not do to others what you do not want done to yourself.
Primal Religions: The universe is alive and interconnected. One should treat all creatures in the world as one would want to be treated.
Buddhism: Treat not others in ways that you yourself would find hurtful.
Judaism: What is hateful to you, do not to your neighbor. This is the whole Torah; all the rest is commentary.
Hinduism: This is the sum of duty: do not do to others what would cause you pain if done to you.