Found Arthur Schopenauer's book "The Art of Controversy" on the web in its entirety. In both English and its original German. Some chapter headings: Generalize your Opponent's Specific Statements Conceal Your Game Make Your Opponent Angry Generalize Admissions of Specific Cases Claim Victory Despite Defeat Generalize the Matter, Then Argue Against it State a False Syllogism Find One Instance to The Contrary Turn The Tables Anger Indicates a Weak Point P...