Snopes.com: Did Einstein say, 'Insanity is doing the same thing over and over again and expecting different results'?
For many years, online users shared an alleged quote from physicist Albert Einstein, claiming he once said, "Insanity is doing the same thing over and over again and expecting different results." The ...
Did Einstein say, 'Insanity is doing the same thing over and over again and expecting different results'?