The Golden Rule or ethic of reciprocity is a maxim, ethical code, or morality that essentially states either of the following:
“One should treat others as one would like others to treat oneself.” (positive form)
“One should not treat others in ways that one would not like to be treated.”(negative/prohibitive form, also called the Silver Rule)
The Golden Rule is arguably the most essential basis for the modern concept of human rights, in which each individual has a right to just treatment, and a reciprocal responsibility to ensure justice for others. A key element of the Golden Rule is that a person attempting to live by this rule treats all people with consideration, not just members of his or her in-group. The Golden Rule has its roots in a wide range of world cultures, and is a standard which different cultures use to resolve conflicts.
Definition courtesy Wikipedia.