Xiang Yu is narrow-minded, because people waste things. Xiang Bo sells him, and he listens to Xiang Bo; Fan Zeng helped him, and he hated Fan Zeng, which showed that he was narrow-minded and had no tolerance for others. This laid a hidden danger for his later failure. In this regard, Emperor Gaozu Liu Bang once said: "In strategic planning, victory and defeat are thousands of miles away, and I am not as good as Ovary (Sean); Towns and villages caress people, give them money and provide food for themselves. These three things are not as good as Xiao He; Even a million-strong army will win the battle and accept the attack. We are not as good as Han Xin ... That's why we occupy the world. Xiang Yu has a Fan Zeng that can't be used, so he was captured by me. " Visible, broad-minded, tolerant of others is the key to success, but also what Xiang Yu lacks.