“It's better to be silent than to be a fool.”
“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 be fooled a hundred times than never to look.”
“Its better to be thought a fool, than to open one's mouth and remove all doubt.”
“It's better to be fooled than to be suspicious - that the confidence trick is the work of man, but the want-of-confidence trick is the work of the devil.”
“Deemed a fool is better than smartass.”