Tsze-Kung asked, “Is there one word with which to act in accordance throughout a lifetime?” The Master said, “Is not reciprocity such a word? What you do not want done to yourself, do not do to others.
When abroad, behaveto everyone as if interviewing an honored guest; in directing the people, act as if you were assisting at a great sacrafice; DO NOT DO TO OTHERS AS YOU WOULD NOT LIKE DONE TO YOURSELF: so there will be no murmuring against you in the country, and none in the family; your public life will arouse no ill-will nor your private life any resentment.
When a person should be spoken with, and you don't speak with them, you lose them. When a person shouldn't be spoken with and you speak to them, you waste your breath. The wise do not lose people, nor do they waste their breath.