The ancient Chinese character “ ” in the second slip of Kongzishilun was calligraphed as “ ”, and explained as a kind of musical instrument made of bamboo. However, it is suggested in this paper that this character should be calligraphed as “ ” in Clerical Script instead of “ ”. Its phonetic loan is “蕩”. Its meaning is “profound and grand” according to the bamboo’s exact meaning and the masterpiece Shijing. The second part of this paper mainly discusses the ancient Chinese character “ ” in the tenth slip of Kongzishilun. There are many explanations of it, such as “攺”, “改”, “妃”, “媐”, “逑” and so on. In our opinion, this character should be written as “施”, which means “educate” or “education”. “關雎之” reflects Confucian ethics of “克己復禮”.