First, impulse. As an ordinary person, it is understandable to attach importance to feelings, but as a ruler, attaching too much importance to feelings is very fatal. Even Chairman Mao once lamented that although Liu Bei was ambitious, he attached too much importance to feelings, and sensibility was greater than rationality, which often led to many mistakes. It's really not easy for Liu Bei to come all the way. At the beginning of his business, everyone looked down on him, but fortunately he was accompanied by two good brothers, Guan Yu and Zhang Fei, so he attached great importance to his feelings. You give him a foot, he gives you a foot back. Once Cao Cao came to attack Liu Bei, and Liu Bei fled when he heard the news. However, the people were grateful for Liu Bei's kindness and followed Liu Bei's army, which led to the slow progress of the army. His generals advised Liu Bei to give up the people, but Liu Bei said, "These people are willing to follow me. How can I give up them?" Because of this, Cao Cao almost caught up with them several times.
Second, I can't tell the main contradiction from the secondary contradiction. After the battle of Yiling, Guan Yu was killed by Wu Dong and Jingzhou was occupied by Wu Dong. In a rage, Liu Beiju attacked Wu Dong with the strength of the whole country and vowed to avenge Guan Yu. At first, it was ok, but soon, the Shu army couldn't stand it, and the front line was too long, which led to logistics failure, so Liu Bei had to stop. But Lu Xun, the commander-in-chief of Dongwu, seized the opportunity and defeated Liu Bei with fire. Liu Bei had to return in vain.
Third, hesitate. The timing of the war between the two armies is very important, but Liu Bei often hesitates, and the battlefield changes rapidly. Once he misses the opportunity, it will be difficult to regain the initiative in the battlefield. Liu Bei didn't have the courage, and he often had to be fully prepared before he put it into action.