The "exploration" in "What is Drilling for Ancient Classics" not only shows the image, but also shows the depth of drilling;
"Rice, almost forgot to eat, he is greedy for spiritual food; He sleeps very little at night. In order to study, he cherishes Yin and divides Yin. " The "greed" and "pity" in the novel embody the linguistic features of Cang Kejia's poems. "He is greedy for spiritual food" shows that he pays more attention to the pursuit of noble spirit. "In order to study, he cherishes Yin and divides Yin." This shows that he cherishes every minute of his research.