Immanuel Kant’s guiding principle, the criterion for all other ethical maxims, is what he calls the “supreme categorical imperative.”
Golden rule: “Do unto others as you would have others do unto you.”
Supreme categorical imperative: “Act only according to that maxim whereby you can at the same time will that it should become a universal law.”
Variations on the Golden Rule
Hinduism—Do not to others what ye do not wish done to yourself…this is the whole Dharma. Heed it well.
Judaism—What is hateful to you, do not do to your neighbor; that is the entire Torah; the rest is commentary; go learn it.
Zoroastrianism—Human nature is good only when it does not do unto another whatever is not good for its own self.
Buddhism—Hurt not others in ways that you yourself would find hurtful.
Confucianism—Do not do to others what you do not want done to yourself.
Islam—No one of you is a believer until you desire for another that which you desire for yourself.
Bahai’I—Ascribe not to any soul that which thou wouldst not have ascribed to thee, and say not that which thou doest not. This is my command unto thee, do thou observe it.
Excerp from “Plato and a Platypus walk into a bar”, by Thomas Cathcart and Daniel Klein