I’m amazed to find myself writing this, but the purpose of this book is to persuade you to be less rational. Stop trying to find the formula that will instantly make your idea into a winner. Instead of being scientists, the best marketers are artists. They realize that whatever is being sold (a religion, a candidate, a widget, a service) is being purchased because it creates an emotional want, not because it fills a simple need. Marketers win when they understand the common threads that all successful stories share.