《后汉书·列传·郑孔荀列传》
曹操大怒，想先攻打袁绍，而怕力量敌不过，就此和荀彧商量。
操大怒，欲先攻之，而患力不敌，以谋于彧。
Cao Cao was furious and wanted to attack Yuan Shao first, but he was afraid that his strength was not enough, so he discussed it with Xun Yu.