In "Cooking Wine and Discussing Heroes", Liu Bei used the excuse of being afraid of thunder to dispel Cao Cao's suspicion of him; the general and Lin Xiangru used the excuse that the King of Qin needed to bathe and change clothes before he could get the He's Bi, shattering the King of Qin's dream of getting it; Yuan Shikai instigated his subordinates to create chaos in Beijing. Yuan refused to accept the appointment as president in Nanjing on the pretext of the unstable situation in Beijing. In the end, he got what he wanted and usurped the fruits of revolutionary victory: different excuses used by different people have different effects. When a hero uses it, it becomes a historical legend, while when a traitor uses it, it becomes proof of his treachery.