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

Source: Tang Dynasty Li Shangyin's "Untitled·It's Hard to Say Goodbye When We Meet"

Meaning: The spring silkworm spins its cocoon and spins out the silk only when it dies, and the candle burns out and becomes ashes like tears. The same wax oil can drip dry.

2. Falling red is not a heartless thing, it turns into spring mud to protect flowers.

Source: Qing Gong Zizhen's "Miscellaneous Poems of Ji Hai·Part 5"

Meaning: Fallen flowers falling from the branches, but they are not heartless things, turning into spring soil , and can also play a role in nurturing the next generation.

Extended information:

In order to praise the greatness of teachers, Teachers’ Day was also established. The development of Teachers’ Day is as follows:

1. In 1931, educator Tai Shuangqiu , Cheng Qibao and others gathered at Nanjing Central University and issued a declaration calling for "improving teachers' treatment, ensuring teachers' jobs and enhancing teachers' cultivation", and agreed that June 6 would be Teachers' Day, also known as Double Six Day. This Teachers' Day was not recognized by the then Kuomintang government, but it had a certain impact across China.

2. In 1939, the Kuomintang government decided to designate August 27, the birthday of Confucius, as Teachers’ Day and issued the “Interim Measures for the Commemoration of Teachers’ Day”, but it was not implemented nationwide at that time.

3. In 1951, the Ministry of Education of the People's Republic of China and the All-China Federation of Trade Unions jointly agreed to designate May 1st as International Labor Day as Chinese Teachers' Day. But the execution results were not ideal.

4. In March 1981, at the fourth meeting of the Fifth National Committee of the Chinese People’s Political Consultative Conference, 17 CPPCC members of the China Association for the Promotion of Democracy jointly submitted a proposal: It was recommended to identify teachers across the country Festival date and activity content plan.

5. In January 1985, the Standing Committee of the National People's Congress designated September 10th as Teachers' Day.

On September 10, 1985, President Li Xiannian issued a "Letter to Teachers Nationwide" and commended 11,871 provincial-level outstanding teacher groups and individuals in 20 provinces and cities during Teachers' Day.

Baidu Encyclopedia-Teachers’ Day