Mark Twain Quotes about Insanity

Mark Twain (2010). “The Man That Corrupted Hadleyburg: And Other Stories”, p.161, The Floating Press
Mark Twain (2013). “Autobiography of Mark Twain”, p.268, Univ of California Press
Mark Twain (2010). “The Man That Corrupted Hadleyburg: And Other Stories”, p.161, The Floating Press
Mark Twain, General Press (2016). “The Complete Works of Mark Twain: All 13 Novels, Short Stories, Poetry and Essays”, p.2441, GENERAL PRESS
Address on the 4th of July, delivered 4 July 1899, London, England
Mark Twain (2012). “Mark Twain at Your Fingertips: A Book of Quotations”, p.298, Courier Corporation
Mark Twain (2014). “Mark Twain’s Letters & Speeches (Annotated Edition)”, p.811, Jazzybee Verlag