Filial piety is ripe, and four books are ripe, such as six classics, before you can read them.
In other words, Xiaojing University has The Book of Songs, Shangshu, Yili, Jing Yue, Zhouyi, Mencius, Chunqiu, The Analects of Confucius and The Doctrine of the Mean.
There seems to be a hundred surnames.