Insanity: doing the same thing over and over again and expecting different results.
You need a little bit of insanity to do great things.
Insanity in individuals is something rare - but in groups, parties, nations and epochs, it is the rule.
Insanity is a very high art form. If everyone was insane, I wouldn't be here!
Religion is induced insanity.
Professional comedians, surprisingly, have a lack of humor. They're insensitive to the insanity of our times.
Everything in Italy that is particularly elegant and grand borders upon insanity and absurdity or at least is reminiscent of childhood.