The document discusses the ethic of reciprocity, or Golden Rule, which appears in many of the world's major religions and philosophies. It states that one should treat others the way one wants to be treated. Specifically, it cites passages from Christianity, Buddhism, Islam, Hinduism, Confucianism that convey some version of this principle. The Golden Rule encourages individuals to have empathy for others and avoid harming them in ways one wouldn't want to be harmed.