It means: If a family keeps a good habit of thrift, it will prosper, and if people can keep industrious, they will not fall into poverty. This sentence includes three aspects: being a man, doing things and being a housekeeper. It is emphasized that these three aspects are inseparable from the word "diligence and thrift".
Under the tenet of "ruling the family with harmony", Zeng Guofan also emphasized "ruling the family with diligence". In Zeng Guofan's view, this diligence has two meanings: one is that family members should be diligent and thrifty, and the other is that parents should be diligent in words and deeds.
Zeng Guofan formed the Xiang army to recover lost ground for the Qing government; Introduce advanced western technology and strengthen the suppression force. Zeng Guofan advocated loyalty to the monarch, defending morality and running the army with Confucianism. At the same time, he also advocated educating officers and men with feudal ethics, taking benevolence, courtesy, loyalty and faith as the essence of running the army and maintaining the morale of the army.
Zeng Guofan, Li Hongzhang, Zuo and Zhang Zhidong are also called "the four famous ministers of ZTE in the late Qing Dynasty".
Reference to the above content: Baidu Encyclopedia-Zeng Guofan