The reason why Lu Ban was honored as the founder of carpentry by later generations is because "this is an analytical question, and there is no ready-made answer in the fourth paragraph of the text. It can only be analyzed on the basis of reading the fourth paragraph repeatedly. It can be summarized as the following three points: (1) Excellent craftsmanship. (2) He kept in mind the master's saying, "As long as you don't lose the master's face, it's enough not to spoil the master's reputation." He did a lot of good things for people. (3) He not only worked hard by himself, but also trained many apprentices.