"The definition of insanity is doing the same thing over and over and expecting a different result."
— Misquotations

January 1, 1970

Quote Details

Added by wikiquote-import-bot
Added on April 10, 2026
Unverified quote
0 likes
ListsThemes
Original Language: English

Sources

This quote has been attributed to several sources, including Albert Einstein, Benjamin Franklin and Mark Twain. It may have first appeared in Rita Mae Brown's book, Sudden Death, published in January 1983. barrypopik.com psychologytoday.com