Book 15: 《衛靈公》 Wei Ling Gong (Duke Ling of Wey)
《衛靈公》 Passage 15.28
子曰：「眾惡之，必察焉；眾好之，必察焉。」
Legge Translation (1861)
The Master said: "When the multitude hate a man, it is necessary to examine into the case. When the multitude love a man, it is necessary to examine into the case."