What is Zeng Guofan's famous saying about reading?
Scholars should be ambitious, knowledgeable, persistent and ambitious, so they will never be vulgar. If they are knowledgeable, they will know that they have endless knowledge and dare not be self-sufficient. If Hebo watches the sea, like a frog peeping into the sky, he has no knowledge. If there is constancy, he can do anything. These three are indispensable.