“At first, my way with men was to hear their words, and give them credit for their conduct. Now my way is to hear their words, and look at their conduct. It is from Yu that I have learned to make this change.”
始吾于人也，听其言而信其行；今吾于人也，听其言而观其行。于予与改是。
Source: The Analects, Gong Ye Chang V, Chapter 10
Author: Confucius
