still tongue makes a wise head

still tongue makes a wise head

Prov. If you are wise, you do not talk very much.; You should only speak when you have judged that it is appropriate to do so. Don't chatter about whatever comes to your mind. A still tongue makes a wise head. Kathy really offended Mr. Parker by talking so much about his ex-wife. She needs to learn that a still tongue makes a wise head.
See also: head, make, still, tongue, wise