Based on China s "Yin-Yang harmony and cooperation" and Western "harmony dialectic" philosophy,we ideally construct "Chinese-Western" theory of humanity in management—the "comprehensive harmony" humanity hypothesis.

The harmonious social human nature theory is the Marx human nature theory inherits and development,which proposes the harmonious society should be people first as well as pers.

The debate on Smith’s question gives an impetus to the theory of human nature.

With the combination of judicial practice in China and based on the clear realization of the relevant theories of the system about circumstance alteration,the significance of establishing the system in China Contract Law was discussed from the perspective of the law and economics with including the Coase Theorem Ⅱ,Rational Man Theory and the principle of maximize the benefit.