Mark Twain Quotes about Ethics

Patriotism is usually the refuge of the scoundrel. He is the man who talks the loudest.
Mark Twain, Caroline Thomas Harnsberger (2009). “Mark Twain at Your Fingertips: A Book of Quotations”, p.350, Courier Corporation
Mark Twain (2017). “MARK TWAIN: 12 Novels, 195 Short Stories, Autobiography, 10 Travel Books, 160+ Essays & Speeches (Illustrated): Including Letters & Biographies – The Complete Works of Mark Twain: The Adventures of Tom Sawyer & Huckleberry Finn, The Innocents Abroad, Yankee in King Arthur's Court, Life on the Mississippi…”, p.8344, e-artnow