《论语·卫灵公篇》
孔子说： 众人都厌恶他，不要轻易相信，要自己考察判断；大家都喜欢他，也一定要自己考察。 
子曰： 众恶之，必察焉；众好之，必察焉。 
Confucius said: Everyone hates him, do not believe it easily, but judge for yourself; everyone likes him, and you must also judge for yourself.