The study has selected On Moderation（〈中正篇〉）of Zhang Zai（張載）as a theory of contemporary virtue ethics and virtue education in light of the author’s concern about the issue of interpersonal alienation in the modern society. However, although the content of On Moderation was of tremendous and grand momentum, it was all-embracing, which has made it difficult for us to command the integral framework of its argumentation. Therefore, the study was divided into three sections, and the author cut them in from the perspectives of the moderation concept, the interpretation of the Theory of Four Nos, connection between three great virtues and five cardinal relationships and five
constant ethics. Last but not the least, the study concluded with Zhang Zai’s special contributions towards the integration of argumentation of the Analects of Confucius（《論語》）, Mencius （《孟子》）, the Doctrine of the Mean（《中庸》）and Great Learning（《大學》）.
In other words, the study showed that Zhang Zai used the viewpoint of “a person who influences all creatures is called a saint” in Jinxin of Mencius（《論語‧盡心》）to illustrate the principle of being neutral that a saint represented. Only the principle of being neutral that a saint embodied could be considered grand and everlasting. However, for ordinary people, they could only enter the state of being neutral through learning rites and ceremonies from the stance of acquiring etiquette at the age of thirty as Confucius once said this was the time for one to become independent. However, based on the research results of the author in recent years, this is the state of feeling inner tranquility as there are no doubts at the age of forty. Therefore, the implementation form of tranquility in mind and integrity in appearance has become an important foundation of China’s virtue education.
To further expound the cultivation of moral character by forming certain morality and cultivating one’s moral character, Zhang Zai adopted the Theory of Four Nos in the Analects of Confucius and the three great virtues in the Doctrine of the Mean respectively to manifest the pattern of forming certain morality by influencing all creatures and cultivating one’s moral character by putting wisdom, benevolence and courage on five constant ethics into practice. Last but not least, the study found that the virtue ethics of Zhang Zai provided great and complete argumentation for the contemporary society to enter the ideal realm of universal harmony in the world and world peace under the structure of the argumentation of “moderation（「中正」）→ moderation, benevolence and justice（「中正仁義」）→ implementing benevolence at ease in mind, being fond of benevolence without desire; disliking cruelty without fear（「中心安仁、無欲而好仁、無畏而惡不仁」） → three great virtues (wisdom, benevolence; courage) （「三達德（ 智、仁、勇）」） → five cardinal relationships (benevolence, justice, courtesy, wisdom; sincerity)（「五常（仁、義、禮、智、信）」）→ five great ways (ruler and minister, father and son, husband and wife, brothers and friends)（「五達道（君臣、父子、夫婦、昆弟、朋友）」）”.