"The greatest artists like Dylan, Picasso and Newton risked failure. And if we want to be great, we’ve got to risk it too." - quote by Jobs
Steve risked it all because he believed in what he was doing and because he was passionate about it. He was fearless in his pursuit of changing technology. Yes there were times he failed but he never quit. Why? Because he was crazy enough to keep going, and to want to succeed. And that brings me to my very favorite quote of his.