It is better to keep your mouth shut and appear stupid than to open it and remove all doubt.
--
Cited as an example of "What Mark Twain Didn't Say" in Mark Twain by Geoffrey C. Ward, et. al.Mark Twain
An open mind is really a mark of foolishness, like an open mouth. Mouths and minds were made to shut; they were made to open only in order to shut.
Gilbert Keith Chesterton
Keep your mouth shut and your eyes open.
Anonymous
For men have dulled their eyes with sin,
And dimmed the light of heaven with doubt,
And built their temple-walls to shut thee in,
And framed their iron creeds to shut thee out.Henry van Dyke
Twain, Mark
Tweed, William Marcy (Boss)
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