There are two white and black horses, among which the white one is a swift horse, which is born with a strong body, while the other black horse is a little worse.
Two horses work for the master together. Because the income of the host is unstable, the food given to them is sometimes good and sometimes bad. Therefore, Bai Qianli horse decides the running speed according to the quality of food. If you eat well, you will run faster. If the food is not good, you will not be so hard. But another black horse was single-minded, regardless of the food given by the owner, it would run hard every time.
Gradually, the master found that the white horse sometimes ran fast and sometimes ran slowly, while the black horse ran faster and faster, so when feeding food, he gave more to the black horse. In this way, Qianlima became more angry, thinking: you treat me like this, I don't have to run hard! Anyway, I have the ability. If you don't give me the treatment of Qianlima, I don't have to contribute to you. After another period of time, the host felt that the white horse ran faster than the black horse, and it became slower and slower. Finally one day, he decided to put the white horse into the mill to pull the mill.
From then on, the White Horse was blindfolded in the mill, eating rough food, grinding around day after day; the black horse galloped outside with its owner, running faster and faster.
