It is the most beautiful standard of human morality. The most universal principle of rational morality human, regardless of any religion or ideology, shared by believers, atheists, Agnostics and any decent person because it is based on mutual respect, consider us as equal in dignity, rights and obligations and supportive relationships that allow us to put us in the shoes of the other. This golden rule of human rationality, Kant, German philosopher illustrated, so formulated it in his critique of practical reason: always acts in such a way that the standard of your action serve as a universal law. Called it " 34 categorical imperative;