Though we can say that the “Child`s mind(童心)” means the first and the most fundermental mind of man in Li zhi`s context, but actually in “Dong xin shuo(童心說)”we can not find any clue that support this interpretation. Some researchers have been trying to find that in the traditional discussions of ancient Chinese scholars --- such as Xunzi(荀子)、 Mengzi(孟子)、 Cheng-Zhu(程-朱) --- about the human nature. But regarding the concrete contents and the theoritical system of Li zhi`s philosophy, I think their efforts hardly could be resulted in successful.
So, in this research, I`ll submit another solution about this problem, that is the theory of Chan(禪) meditators. But the “buddha” in Li zhi`s concept is the guide who volunteer to go into people, with them conferring all kind of problems that caused from mundane or general life, and eventually help them live happier life. Especially when he suggested to “study byddha”, he laid great emphasis on one point that man should free himself from the shallow way of “experience and reason” accounted by the Neo-confucian scholars. On the contrary, he asserted that it is important to live natural life, in which all problems of life are put into Nature itself.
Consequently, it is good enough to say that the important foundation of the theory of “Child`s mind" is from that of Chan(禪) meditators. But out of question, it is clear enough that Li zhi adopted the original theory of buddhists with some changes.