心理学的基本理论，尤其是人格理论，通常都蕴含着对人性的假设。人性观的差异常常导致其理论建构的差异。而且人性观影响心理学研究的方式、方法，影响对心理成因的认识、对心理疾病的理解、及对异常矫正策略的选择。 The basic theory of psychology, especially personality theory, usually contains the assumption of human nature. The differences of human nature often lead to the differences in their theoretical construction. Moreover, the concept of human nature affects the way and method of psychology research, affects the understanding of psychological causes, understanding of psychological diseases and the selection of abnormal correction strategies.