2.？ Bian Wei's Three Musts: In his later years, Confucius liked to study Zhouyi and compiled works such as Cohesion, Xiangci, Shuogua and Classical Chinese to explain Zhouyi. Due to repeated reading, the cooked cowhide rope of bamboo slips was broken many times. Later, I used this allusion to describe diligent reading.
3.？ Dig a wall to borrow light: Kuang Heng is diligent and studious, but his family is poor and there is no candle, so he digs a wall to attract the light of his neighbors to study. Later generations used "digging walls, empty walls, stealing light, stealing light, digging walls to borrow light, borrowing light" to express diligent study and hard study.
4.？ Zhu Maichen's family is poor, so he studies when cutting firewood and also studies when collecting firewood. After that, he was recommended by Yan Gang for his knowledge and became an official.
5.？ With a hoe: Ni Kuan's family is poor. He helps study in the kitchen, hangs the scriptures on the hoe handle when he goes down to the ground, and reads them when he has a rest. After studying with my teacher, I deeply studied Confucian classics.
6.？ Linchi Xueshu: Zhang Zhi practiced calligraphy, wrote on clothes and silks at home, practiced repeatedly, dyed a pool of water, and finally became a cursive script. Later, he used "Linchi to learn calligraphy and practice calligraphy" to describe studying calligraphy hard.
7.？ Don't peek into the garden: Dong Zhongshu has been teaching for three years, staying indoors and concentrating on his studies. Later generations used this allusion to describe burying one's head in reading and staying at home.
8.？ Cutting cattails is an official order: Lu Wenshu cuts cattails and writes notes when herding sheep. Later generations used "cutting pu, cutting pu, weaving pu and writing pu" to refer to hard work.
9.？ Hanging beam studying hard: Sun Jing tied one end of the rope to the beam and the other end to his hair to prevent dozing off. When he is tired of reading, his head hurts his scalp, and he immediately becomes awake and continues to study.
10.？ Read more than three times: Dong Yu often said that it is self-evident to read a book a hundred times, and we should use three kinds of free time to read it: "winter, night and rainy day". Later generations often refer to cherishing time to study.