Postmodernism is the most ruthlessly consistent statement of anti-reason and antirealism. It is the consequence of over two centuries’ effort to reject reason. Although postmodernists presents themselves as anti-metaphysics and anti-epistemology, but in postmodernism we find metaphysical antirealism, epistemological subjectivity, the placing of feeling at the root of all values, the consequent relativism of both knowledge and values, and the consequent devaluing or disvaluing of the scientific enterprise.