听其言观其行
tīng qí yán guān qí xíng
基本释义
  1. [listen to what a person says and watch what he does;take note of sb.'s words but judge him by his deeds] 听一个人说什么，又看他做什么，常有不仅要听他说的，更重要的是看其做的如何的含义
英文翻译
  1. hear what he says and observe what he does (idiom, from Analects)
  2. judge a person not by his words, but by his actions