n. Doing the same thing over and over again and expecting different results.
Many people hear voices when no-one is there. Some of them are called mad and are shut up in rooms where they stare at the walls all day. Others are called writers and they do pretty much the same thing.
— Meg Chittenden
What garlic is to salad what insanity is to art.
The more things change, the more they remain...insane.
— Michael Fry & T. Lewis
Insanity in individuals is something rare – but in groups, parties, nations and epochs, it is the rule. [Editor: He forgot 'committees']
— Friedrich Nietzsche