Interpretation: With its superb professional knowledge, it is not difficult to teach others (as a teacher); With its profound knowledge and noble personality cultivation, it is not so easy to teach people how to be a teacher.
2.？ Silkworms in spring will weave until they die, and candles will drain the wick every night. -Li Shangyin
Interpretation: Spring silkworms spit out silk until they die, and candles burn to ashes to drip dry teardrop wax oil.
3.？ Once a teacher, always a father. -Guan Hanqing
Interpretation: The teacher once taught you that you should treat the teacher like a father all your life.
4.？ Sneak into the night with the wind, moisten things silently. -Du Fu
Interpretation: Spring rain falls quietly at night with the spring breeze, silently moistening everything on the earth.
5.？ Teachers, so preach, teach, and solve doubts. -Han Yu
Interpretation: A teacher is a person who is used to impart knowledge, teach knowledge and answer doubts.