《韩非子·内储说上七术》
如果攻打齐、楚这件事确实有利，全国都认为有利，聪明的人怎么会这么多啊！
夫齐、荆之事也诚利，一国尽以为利，是何智者之众也？
If attacking Qi and Chu is beneficial, everyone in the nation would think it is beneficial; how could there be so many smart people!