自然法
Natural law (, "lex naturalis") is a system of law based on a close observation of human nature, and based on values intrinsic to human nature that can be deduced and applied independent of positive law (the enacted laws of a state or society). According to natural law theory, all people have inherent rights, conferred not by act of legislation but by "God, nature, or reason." Natural law theory can also refer to "theories of ethics, theories of politics, theories of civil law, and theories of religious morality."