Abstract
This paper attemps to point out the importance of the approach of Leo Strauss in the 21st century. The Straussian approach to the history of political thought requires the recovery of ancient knowledge of political things. And this is in turn requires the revival of classical political philosophy. Leo Strauss puts Ancient as Modern, approaching Modern as the philosophical foundation of Western decadence. For Leo Strauss, positivism and historicism led western civilization to relativism. The classical political philosophy discredited as anti-democratic and incompatible with modern natural science. Moral values were undermined by historical facts. Good and evil ceased to employ modern political philosophers and received by the discredited metaphysical field. Modern man surrendered to individualism, conformism and nihilism.