"The definition of insanity is 'doing the same thing over and over and expecting a different result'". 1. No, actually... that's not the definition, not even close. and 2. Albert Einstein never said it. Neither did Benjamin Franklin or Thomas Edison. Stop repeating this like you know what you're talking about. inÂ·sanÂ·iÂ·ty inˈsanitē/ noun the state of being seriously mentally ill; madness. [TABLE="class: vk_tbl vk_gy"] [TR] [TD="class: lr_dct_nyms_ttl"]synonyms:[/TD] [TD]mental illness, madness, dementia; More [/TD] [/TR] [/TABLE] extreme foolishness or irrationality.