“I doubt it with a silent B.”
“What is the answer?" [ I [Alice B Toklas] was silent ] In that case, what is the question?”
“Wise men, when in doubt whether to speak or to keep quiet, give themselves the benefit of the doubt, and remain silent.”
“Presently, I was aware that Jeeves was with me. I hadn't heard him come in, but you often don't with Jeeves. He just streams silently from spot A to spot B, like some gas.”
“It is better to remain silent at the risk of being thought a fool, than to talk and remove all doubt of it.”
“It's better to remain silent and give the impression of being foolish then to speak and remove all doubt.”