“The author must keep his mouth shut when his work starts to speak.”

“"A newspaper man has got to know when to keep his mouth and his mind shut. You might end up dead."
"Isn't that the usual fate of men, Harry?"”

“no' when no one answered, Derek looked from face to face, then settled his glower in me. 'absolutely not.'
'um, I was the one keeping my mouth shut' I said.”

“Success = 1 part work + 1 part play + 1 part keep your mouth shut”

“If A is success in life, then A = x + y + z. Work is x, play is y and z is keeping your mouth shut.”

“Even if the things are against his faith and religion, it's not to be said: don't speak and shut up your mouth, for thus there won't be clearing of the religion. Vice Versa, in this case we say: speak as you want.”

“Life is fraught with opportunities to keep your mouth shut.”

“Never miss a chance… to keep your mouth shut.”

“Half of seeming clever is keeping your mouth shut at the right times.”

“The first thing a psychologist learns is to keep her mouth shut around laymen.”