"It is better to remain silent at the risk of being thought a fool, than to talk and remove all doubt of it." (Maurice Switzer.) I had always believed that this quote, in a slightly shorter form, was from Abraham Lincoln, but this afternoon a friend mentioned it to me and attributed it to Mark Twain, so I decided to check where it actually comes from. There are attributions to both Lincoln and Twain going back a long way - Golden Book magazine attributed it to Lincoln nearly a century ago, in 1931, in the form which I remember, and in 1953 a newspaper in Canada attributed it to Mark Twain. However, neither the Yale Book of Quotations or the Quote Investigator website were able to find any attribution to the former US President or the author earlier than 1931 or 1953 respectively, and the saying was in use for several decades prior to 1931 without any attribution to either. The Bible does contain an idea very similar to the first part of the quote above, in Proverbs 17:28. ...