Sage

According to Chinese philosophy, the man who accomplishes this synthesis, not only in theory but also in deed, is the sage. He is both this-worldly and other-worldly. The spiritual achievement of the Chinese sage corresponds to the saint's achievement in Buddhism, and in Western religion. But the Chinese sage is not one who does not concern himself with the business of the world. His character is described as one of "sageliness within and kingliness without." That is to say, in his inner sageliness, he accomplishes spiritual cultivation; in his kingliness without, he functions in society. It is not necessary that the sage should be the actual head of the government in his society. From the standpoint of practical politics, for the most part, the sage certainly has no chance of being the head of the state. The saying "sageliness within and kingliness without" means only that he who has the noblest spirit should, theoretically, be king. As to whether he actually has or has not the chance of being king, that is immaterial.

Since the character of the sage is, according to Chinese tradition, one of sageliness within and kingliness without, the task of philosophy is to enable man to develop this kind of character. Therefore, what philosophy discusses is what the Chinese philosophers describe as the Tao (Way, or basic principles) of sageliness within and kingliness without.

This sounds like the Platonic theory of the philosopher-king. According to Plato, in an ideal state, the philosopher should be the king or the king should be a philosopher; and in order to become a philosopher, a man must undergo a long period of philosophical training before his mind can be "converted" from the world of changing things to the world of eternal ideas. Thus according to Plato, as according to the Chinese philosophers, the task of philosophy is to enable man to have the character of sageliness within and kingliness without. But according to Plato, when a philosopher becomes a king, he does so against his will—in other words, it is something forced on him, and entails a great sacrifice on his part. This is what was also held by the ancient Taoists. There is the story of a sage who, being asked by the people of a certain state to become their king, escaped and hid himself in a mountain cave. But the people found the cave, smoked him out and compelled him to assume the difficult task. (Lv-shih Ch'un-ch'iu, I, 2.) This is one similarity between Plato and the ancient Taoists, and it also shows the character of other-worldliness in Taoist philosophy. Following the main tradition of Chinese philosophy, the Neo-Taoist, Kuo Hsiang of  the third century A.D., revised this point.