Seize the commercial patent by emphasizing the cost and restraining the end.

Ye Shi's emphasis on industry and commerce is not only manifested in his opposition to attaching importance to this and restraining the end, but also in his hope that businessmen will participate in political discussions and enter the ruling group. It makes sense to let four people do it for the whole world, but four people have never failed in doing things in ancient and modern times. The ancients said there was no class for Jincheng's recklessness, although industry and commerce dared not refuse. (Introduction to Learning 12) Denying the old rule that industrial and commercial children are not allowed to be officials, and advocating that there is no identity restriction when entering an official position is related to change, which is of great significance in the history of economic thought. At that time, even the industrial and commercial children were on their way to official careers. If there are witches among the industrial and commercial people who don't recognize the group, they are also allowed to send them away. (15, 16, volume 14) Su Zhe said: In today's home of agriculture, industry and commerce, no one has abandoned the old and become a scholar. (The Book of the Emperor in Ji Cheng, Lu 'an (Volume 2 1)) is different from that in Tang Dynasty (Volume 3 of the Six Classics of Tang Dynasty). Ye Shi's point of view is very valuable. At that time, with the development of commodity economy, the economic status of businessmen improved, and the interest requirements were also put on the agenda. There were no businessmen thinkers in ancient times, so few scholars represented the interests of businessmen and spoke for them. From Fan Zhongyan's metaphor of my business in the Northern Song Dynasty to Ye Shi's request for businessmen's permission to become officials, it is proved that economic development has promoted the change of ideas. However, this still has great limitations, which is different from the western civil class's requirements for autonomous rights and interests.