I don't think most analysts understand that whether I work a 70-hour week or an 80-hour week, I take my head with me when I go home.

The risk of failure is a very personal thing. One of the quotes I like, I think this came from the famous basketball coach from California - John Wooden - is that, "Successful people - winners - do everything necessary to prepare to win, without the certainty of winning." Everybody would do everything necessary to prepare to win if winning was a certainty. So you're willing to put yourself out publicly and privately and say, "I'm going to do this."

Everything has a lifecycle. You have to believe it’s going to change.

I think success is about purpose. People ask about success at different points in your life. As I look back, I think people that are successful feel good about what they are doing, and they can look back at what they've done and they feel good about it. People sometimes ask about success and they say, "What's your legacy?" and I say, "I think it's really a dumb question." I think the question is: What am I doing now? Do I feel good about myself? Am I proud of myself? Whatever purpose there is in life, I think success is about purpose. It's not about material things.

My mom was terrific. I described my mom once. If fear was a color, she was color blind. Nothing frightened her. If I told her that I was going to take over General Motors, she'd say, "You can do it." Just the most preposterous things, ambitious things, she said, "You can do it."

I am really proud of the development of the people on my team as they grow in purpose; they like what they see in the mirror.

What makes you tick? Why do you care about the things you care about?