“One of the better definitions of insanity - doing the exact same thing over and over and expecting the result to be different.”

“Do you know what Albert Einstein's definition of insanity was?" "No." "Doing the same thing over and over and expecting different results.”

“Insanity is doing the same thing, over and over again, but expecting different results.”

“My dad used to say the definition of stupidity was doing the same thing over and over again and expecting a different result. Or maybe that was the definition of crazy.”

“Unfortunately, Susan didn't remember what Jane Fulton once said, 'Insanity is doing the same thing, over and over again, but expecting different results.”

“Right, and the definition of basic stupidity is to keep doing the same thing over and over again while expecting a different result. I’m not stupid. (Xypher)I didn’t say to keep doing it. Move forward with purpose. Examine what went wrong and correct that one mistake. (Acheron)”