Liang Zhangju of the Qing Dynasty once advocated "the method of mastering a book" in "Tui'an Essays". He metaphorically said: "If you lead an army of one hundred thousand and treat them all the same, you won't be able to get the strength of one soldier; if you make friends and have no closeness or support, you won't get the help of a single friend. If you lead an army, there will be hundreds of close relatives and dead soldiers, and if you make friends, you will have to have one." The second righteousness, liver and gallbladder, can be used for everything else." The same goes for reading. You must first understand the fundamentals, chew them slowly, and make them become something you already have. With this as the backbone, erudition can be enriched, nourished, and accomplished. If you only know how to immerse yourself in reading, skimming through thousands of volumes, then I am afraid that in the end you will only read and finish reading, and gain nothing.