Early childhood education is a bit too simple, and it is best for the lecture room to have a certain foundation to make up for it. The Book of Changes is a bit too difficult. Starting with four books is relatively easy. If it is not good enough, compare it with the vernacular version. After that, I studied some books in which a hundred schools of thought contend, and then attacked the Five Classics. After that, the ancient books are almost the same. For example, Wen Xin Diao Long is an analysis of some ancient classics. It's easier to speak Newspeak in the world. Meng Qian speaks lightly in all aspects, so he can add some knowledge, such as vegetable root altar, groan, plain calligraphy ... and take a look at the history of 24 years.