You should listen to your heart, and not the voices in your head. – Matt Groening, The Simpsons, spoken by the character Marge Simpson

Sanity is madness put to good uses. – George Santayana, Little Essays

There is always a madness in love. There is however also always a reason in madness. – Friedrich Nietzsche (1844–1900), “Of Reading and Writing,” Thus Spake Zarathus

A lunatic may be – Edgar Allan Poe