When the multitude hate a man, it is necessary to examine into the case. When the multitude like a man, it is necessary to examine into the case.
众恶之，必察焉；众好之，必察焉。
Source: The Analects, Wei Ling Gong XV, Chapter 28
Author: Confucius
The Sovereign Mind: Confucius on Why You Must See for Yourself, Regardless of Public Opinion
