Mark Twain
Mark Twain was an American writer and humorist, best known for his novels 'The Adventures of Tom Sawyer' and 'Adventures of Huckleberry Finn'.
"Each man must for himself alone decide what is right and what is wrong, which course is patriotic and which isn't. You cannot shirk this and be a man. To decide against your conviction is to be an unqualified and excusable traitor, both to yourself and to your country, let men label you as they may."