The premise of "dedication and happiness" is "having a job". Firstly, the author quotes Confucius' words and the story of Zen master Baizhang, and draws the conclusion that "all trades come first, and all evils and laziness come first", emphasizing that "having a job" is the foundation of being a man.

When demonstrating the issue of "dedication", Zhu used "only respect and obedience" to explain the meaning of "dedication". Then, ask a question of "why should we respect". The author demonstrates "every profession" from the needs of human existence (working for life) and the significance of individual life (living for labor)

Therefore, "we have no choice about various occupations". As for what kind of work we should do, it all depends on "how our talents are and how our situation is". As long as we do a job satisfactorily, we are the first person in the world.

Then, he asked: "How can I finish a work?" Again, "the only secret is loyalty" and "respect". The famous sayings of Zhuangzi, Confucius and Zeng, the comparison between carpenters and politicians, and the comparison between scavengers and soldiers all emphasize a truth: "Dedication is the most necessary and beneficial thing in life."