Ceng Shiqiang, a professor at Taiwan Province Normal University, described the mystery of the Book of Changes in Lecture Room. What he said was the fifth slogan of Kungua, "Huang Shang, Yuanji". At that time, Zheng He, who had made seven voyages to the West, was taken as an example, saying that he had reached the highest state of Kungua, achieved "loyalty" and "a gentleman carries things with virtue". The example of Ceng Shiqiang is very vivid and impressive.