The term “human rights,” fulfils two different but consistent functions: (1) the phrase ‘universal human rights’ is used to assert that universal norms of standards are applicable to all human societies. This assertion has its roots in the medieval notions of natural law. (2) The idea of human rights is used to affirm that all individuals, solely by virtue of being humans, have moral rights which no society or state should deny. This idea has its roots in the classical theories of natural rights. Despite these consistent functions, there are different approaches to human rights. These approaches are Natural Law Theory, Positivism, and Marxist, Sociological and Modern Approaches.