I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.

He oversaw development of the Tesla Roadster. Musk is also a member of the board of trustees of the California Institute of Technology (Caltech).

Musk holds a bachelor's degree in Business from the The Wharton School and a second bachelor's degree in Physics from University of Pennsylvania School of Arts and Sciences. He is currently the CEO and Chief Designer of SpaceX CEO and Product Architect of Tesla Motors and Chairman of SolarCity. While at those companies he oversaw the construction of the first electric car of the modern era the Tesla Roadster a private rocket known as Falcon 9/Dragon and the Internet payment system PayPal.