Records of Authentic Biography, Volume 23

"Can one occupy just one corner? Now Chang'an is in ruins, and the Red Eyebrows An agrarian rebel group are at the gates. The ministers are deserting, and the guiding principles are already severed. The King of Xiao is managing Hebei, and the heroic and talented are gathering like clouds; the common people are yielding like grass in the wind. Even if Bin and Qi admired Zhou, it is not enough to be compared to this. If Jiwen can truly awaken to success or failure, quickly decide on a great plan, and turn disaster into good fortune, this is the time."

"If a fierce general and a man of virtue surrounds the city with strict troops, even if you have regrets, it will be too late." Yi then replied to Yi's letter, saying, "I originally plotted with the King of Xiao to restore the Han. Only because I deeply understand the King of Xiao do I wish to offer my shallow strategies to assist the country and pacify the people." After Li Yi sent the letter, he no longer contended with Yi. Therefore, Yi was able to attack Tianjing Pass to the north and capture two cities in Shangdang. He then went south and took thirteen counties to the east of Chenggao in Henan. Wu Bo led over ten thousand men to fight Yi at Shixiang. Yi beheaded Bo and obtained five thousand heads.