Rules that govern us as a society, country and world. Even rules are organic and they grow with time. Principles are dynamic and they change with time. A little look on the growth of constitutionalism with time.
At the inceptions of every civilization it was ruled by some king or head of the community who derived their legitimacy with some commonly established norms. Caliphs got their authority from religions, English from Queen, Indians from Kinds, Chinese had dynasties and tribals around the wo