听了他的话,还要观察他的行为是否言行一致。《论语・公冶长》:“子曰:『始吾于人也,听其言而信其行;今吾于人也,听其言而观其行。』”
英语 listen to what a person says and watch what he does(take note of somebody's words but judge him by his deeds)
俄语 судить не по словáм,а по делáм