The significance of diligent training is that diligence is the only way to cure life. Independent variable: 1. Directly solving the problem is called "getting to the point". To quote the ancients, this is called "teaching by example". Rhetoric is called "quotation". The famous sayings of ancient sages are used to strengthen and better demonstrate their own arguments, so when quoting, the contents of famous sayings must support their own arguments. 3. At the beginning of the article, "diligence" is the first meaning, and it is believed that people should live seriously and practice "diligent attitude" in their own lives. In order to strengthen this argument, the author quoted Shao Yong's famous words, which proved his argument well and made it clear that even ancient sages agreed with his point of view. 4. Since Shao Yong's words also agree with "diligent attitude", quoting this sentence can certainly help the author to get to the point that "diligence is more important than diligence".