关键词: 性恶论, 善, 恶, 存在论, 价值论

Abstract: On the aspect of ontology,human's essential attribution, natural attribution and social attribution, consist the premise and basis of ancient Chain evil.On the aspect of axiology, the ancient philosopher who believe human nature is bad advocated we should suppress evil and promote goodness or eliminate evil and save goodness. It leads to the paradox of the ancient theory which is human nature is bad, on the way of ontology, we confirms evil has existent fact and foundation, while we deny the evil's rationality and legitimately on the aspect of axiology. The final orientation value of the people who believe human nature is bad makes people being good. The theories of human nature is good and human nature is bad reached the same goal by different routes on the problem of goodness and evil: there are different routes in the sense of ontology while they have the same goal which is for goodness on the sense of axiology. But to the orthodox thinking of evil, utilitarianism of Song Ming dynasties affirmed the evil's rationality and legitimately in some degrees.

Key words: doctrine of evil human nature, ontology, axiology, good, evil