If you tell the truth you don't have to remember anything. Samuel Langhorne Clemens (November 30, 1835 – April 21, 1910), known as Mark Twain, was an American humorist, novelist, writer, and lecturer. See also: Life on the Mississippi Pudd'nhead Wilson The Prince and the Pauper Quotes[edit] Truth is the most valuable thing we have. Let us economize it. I haven't a particle of confidence in a man w