揚雄的思想雜有儒、道，與陰陽五行之說。因此，其心性論，在漢人習慣以氣言心性的特色上，並繼承前人心性說的發展，建構了以「晦明說質性」善惡相混的性論，與「心思撝聖」、「心智撝謀」 尚智的心說。主張惡出於情，而去惡存善的方法，有賴於發揮神明思慮的心之主體，知學以修情性，而入於聖門。 Yang Xiong ' s thought has mixed the Confucian, Taoism, Yin Yang and the concept of the five elements, In the Han Dynasty, discusses the characteristic with the vitality which the disposition is accustomed. Therefore, in his mentality discussion Yang Xiong had inherited the development which the predecessor disposition and then constructed the " discussing human nature from darkside and brightside, the virtue and the wickedness are coexisted theory”,”thoughts prudent and meticulous people may become the sage " , " intellectual people may become the adviser “. Above al1 these human nature’s theory advocate the human’s wisdom . There is an opinion about the bad thought as well as the behavior stem from the sentiment , how does the evil removal to save the friendly, depends on the display consideration clear mental main body . Then , by studies the self - control disposition , but accomplish sage’s boundary.