" So what’s his secret? Musk has a few, but none are more important to him than passion and purpose. “I didn’t go into the rocket business, the car business, or the solar business thinking this is a great opportunity. I just thought, in order to make a difference, something needed to be done. I wanted to have an impact. I wanted to create something substantially better than what came before.” Musk, like every entrepreneur in this chapter, is driven by passion and purpose. Why? Passion and purpose scale—always have, always will. Every movement, every revolution, is proof of this fact. Plus, doing anything big and bold is difficult, and at two in the morning for the fifth night in a row, when you need to keep going, you’re only going to fuel yourself from deep within. You’re not going to push ahead when it’s someone else’s mission. It needs to be yours. "

― Peter H. Diamandis , Bold: How to Go Big, Create Wealth and Impact the World