What are the examples of the failure of China's ancient reform?

Wang Anshi's political reform, because Wang Anshi wanted a comprehensive reform and was too impatient, eventually led to the failure of the political reform.

There is a child who likes biology very much and wants to know how the pupa breaks into a butterfly. Once he saw a pupa in the grass, he took it home and observed it every day. A few days later, a crack appeared in the pupa, and the butterfly inside began to struggle and wanted to fly out. The difficult process lasted for several hours, and the butterfly struggled in the pupa. The child looks a little reluctant and wants to help it.

Kill the goose that lays the golden egg?

Once upon a time, there was a man who kept an old hen at home. This chicken had a strong ability to lay eggs, but for a while it always didn't lay eggs and was sick. The man thought it was useless not to lay eggs, so he killed the chicken. After breaking the chicken's stomach, he found that the reason why the chicken got sick was gallstones, which were like eggs. When killing chickens, it happened that Xianglinsao, who spoke sharply next door, came to visit.