|Tao is the origin, the principle and the original power of all universal beings. Tao is the firstly and elementarily philosophical concept in the Chinese culture of Tao-succession. Tao is also considered as the first treasure of the cultural thoughts, and Der (Virtue) as the second. Tao is the principle and the substance of Der, and Der is the appearance and the application of Tao. In the Chinese Culture, Tao and Der are considered as two in one, and morality is considered as the first mission in human life. In all eras, saints superior men cultivate the Tao and establish the Der, and they think that morality occupies the first place in all human affairs.
Tao includes the three Universal Elements of Heaven, Earth and man in the developmental processes of Tao-succession. Therefore, Tao is divided into three: Tien Tao (the Heavenly Way), Ti Tao (the Earthly way) and Jen Tao (the Human way). Tien Tao, Ti Tao and Jen Tao are also mentioned in the appendixes of I-Ching (the Book of Changes). In the development of cultural thoughts, saints teach social people to obtain the truth of Tien Tao, the goodness of Jen Tao and the beauty of Ti Tao. Truly, saints synthesize truth, goodness and beauty, and enjoy "sagehood", they are the great teachers in human life.
This research will apply the classical sayings of the Tao-succession culture through the ages to narrate the philosophical meaning, the significance4 of the Three Universal Elements of Tien, Ti and Jen, and combine Tao and The three Universal Elements, and investigate the comprehensive significance of Tien Tao, Ti Tao and Jen Tao. Furthermore, I shall apply the mentioned comprehensive significance to expound the social responsibility of humankind and the necessary mission of human life.