Liberalism began with the movement of empiricism. In liberal ideology, the concept of freedom is to empower the individual as much as possible. Liberalism is based on its five basic concepts which are rationality, individualism, freedom, justice, and diversity respectively. The main goal of liberalism is to bring rationality to the center and then to become a claimant of a universal ideology on this basis. This concept seems far from its ground truth. For this reason, the social role of liberalism has been very contradictory. Capitalism could not grasp this contradiction, especially the concept of rationality and this is the contradiction and flaw of liberalism and limits it. This is where his claim of universality also falls flat. Based on these contradictions, postmodernism challenges liberal ideology and speaks of postmodern values.