Albert Einstein? Al-Anon? Narcotics Anonymous? Max Nordau? George Bernard Shaw? Samuel Beckett? George A. Kelly? Rita Mae Brown? John Larroquette? Jessie Potter? Werner Erhard? Question for Quote Investigator: It’s foolish to repeat ineffective actions. One popular formulation presents this point harshly: The definition of insanity is doing the same thing over and over again and …