Abstract: The theory of natural rights,logic of assumption about human nature,and idea of bounded rationality constitute the humanological foundation of political philosophy.Based on the three progressive principles of supremacy of individual rights,rights alienation and bounded government,natural rights have developed a path to dispel evil by using rights to balance and restrict power.From the multiplication of the duality of good and evil of human nature,the foundation of moral judgment of political philosophy is gained,and whichever it might be,the one-dimensional political philosophy and political practice are neither self-sufficient nor perfect.Epistemology of bounded rationality and operation mode of bounded government,opposed to theories of unbounded rationality and omnipotent government,are created based on the limit of human cognitive competence and intelligence scope.In any case,the legal standard to meet the fundamental interests of mass people should be adopted when we discuss the political legitimacy and how to promote state governance system and modernization of governance capacity under the present conditions and framework.

Key words: political philosophy, natural rights, assumption of human nature, bounded rationality, bounded government