Zeng Guofan's famous saying 1. When people all over the world study, they must first have ambition, second have knowledge and third have perseverance. If they are ambitious, they will never feel inferior; If you have knowledge, you know that knowledge is infinite, and you dare not sell yourself short. Such as Hebo watching the sea, such as a well frog peeping into the sky, no one knows; With the same wealth, everything is possible. All three are indispensable.