《尚书·周书·洪范》
态度要恭敬，言论要正当，观察要明白，听闻要广远，思考要通达。
貌曰恭，言曰从，视曰明，听曰聪，思曰睿。
Attitude should be respectful, speech should be right, observation should be clear, listening and hearing should be wide-ranging, and thinking should be smooth.