The last sentence of "Three-Foot Platform" is "Teach people tirelessly and have no regrets in this life."

This is a couplet, and the whole couplet is:

The first part: the three-foot platform tirelessly teaches people.

Bottom line: No regrets in this life.

Horizontal criticism: teaching and educating people

All-China Federation means that teachers stand on the three-foot platform, water the flowers of the motherland with their youth and wisdom, and educate the talents of the motherland; Teachers are selfless, lead an honest and clean life, and have no regrets in teaching and educating people in this life!