First, before the country was destroyed, Gou Jian did not listen to Fan Li, sent troops and lost, and became a prisoner. Then, I tasted courage and finally destroyed Wu.
Second, Fu Cha, the king of Wu, did not listen to Wu Zixu, failed to kill Gou Jian as soon as possible, enjoyed beauty, and ignored state affairs, and was finally subjugated.
Thirdly, Xiang Yu didn't listen to Fan Zeng, didn't kill Liu Bang at the Hongmen banquet, and finally committed suicide in Wujiang River.
Fourth, Cao Cao was cheated by Liu Bei. He didn't listen to Cheng Yu and didn't kill Liu Bei in Xuchang. In the end, there were three points in the world, and China was not unified in his lifetime.
Fifth, Guan Yu did not listen to Zhuge Liang's plan. He married Sun Quan in the east and refused Cao Cao in the north, and was finally beheaded.
Wait, there are so many, it is really impossible to list them one by one. If you list them, you can write a book.