1. Spring silkworms will not run out of silk until they die, and wax torches will not dry until they turn to ashes.

From "Untitled·It's Hard to Say Goodbye When We Meet" by Li Shangyin of the Tang Dynasty. It means that spring silkworms don't spin their cocoons until they die, and candles need tear-like wax when they burn out and turn to ashes. Drip dry. It is a metaphor for the great spirit of a teacher who works hard to educate students and dedicates himself.

2. Shake off and know Song Yubei well, and he is also my teacher in being elegant and elegant.

It comes from Du Fu's "Five Ode to Ancient Relics Part 2" in the Tang Dynasty, which means reciting silently the falling grass and trees, and knowing why Song Yu is sad for autumn; he is my teacher because of his profound knowledge and brilliant diction. It shows the author's understanding of Song Yu as his mentor.

3. Your Majesty has peaches and plums all over the world, so why bother planting more flowers in front of the hall?

It comes from Bai Juyi's "Planting Flowers in the Green Wild Hall of Your Majesty" by Bai Juyi of the Tang Dynasty. It means that your lord's students are all over the world, so why should we plant flowers in front of the house? This poem uses the rhetoric of metonymy, using peaches and plums to represent students. Green Field Hall refers to the name of Pei Du's house in the Tang Dynasty. This poem captures the essence of all things by writing about Pei Du's house without planting flowers. It expresses the praise of a teacher who is famous all over the world.

4. Sneak into the night with the wind, moisturizing things silently.

It comes from "Spring Night Joyful Rain" by Du Fu in the Tang Dynasty, which means quietly entering the night with the gentle breeze. Finely and densely, it nourishes all things on the earth. Using personification techniques, the combination of "sneaking into the night" and "silence" not only shows that the rain is the drizzle accompanying the gentle wind, but also shows that the rain intends to "moisten things" and has no intention of "please", which can show the love for the rain. The silent dedication of the teacher and the praise of the students.