What is insanity?
Doing what does not work. Not doing what does work.
Knowing these things, through revelation, instruction, experience, and common sense, yet doing what does not work or not doing what does work.
Sponsor: ‘If you’re not insane, why are you here?’
Sponsor: ‘If you’re insane, why are you talking?’
Character 1: ‘There’s head-sense, and there’s heart-sense.’
Character 2: ‘There’s common sense and there’s nonsense.’
Listen, learn, apply, show others.