It’s true: the rule of treating others as you would want to be treated in their place will ultimately lead to your own happiness.
The ethic of reciprocity is a fundamental moral value which "refers to the balance in an interactive system such that each party has both rights and duties, and the subordinate norm of complementarity states that one's rights are the other's obligation."
In essence, it is an ethical code that states one has a right to just treatment, and a responsibility to ensure justice for others. Reciprocity is arguably the most essential basis for the modern concept of human rights, though it is not without its critics. Many assign the imperative commandment of Golden Rule as instruction for a positive only form of reciprocity. A key element of the golden rule is that a person attempting to live by this rule treats all people, not just members of his or her in-group with consideration. The golden rule, with roots in a wide range of world cultures, is well suited to be a standard to which different cultures could appeal in resolving conflicts.
(WIKIPEDIA)
