Chen Gong
When Cao Cao's army reached Pengcheng, Chen Gong told Lü Bu, "We should attack the enemy now, since our troops have rested well while the enemy is weary. We're sure to win." Lü Bu replied, "Why don't we wait for them to attack first? After that we'll destroy them in the Si River." When Cao Cao's attacks increased in intensity, Lü Bu went up the White Gate Tower (白門樓; the viewing platform above the main gate in the south of Xiapi) and told his men, "Cao Cao has no intention of finding trouble with you. I should surrender to the wise lord." Chen Gong said, "The treacherous Cao Cao is no wise lord! Surrendering to him is like hitting a rock with an egg! How can you expect to live (after you surrender)?"