"I think it's important to have a good sense of humor, because life is too short to be serious all the time."

"I believe that every day is Day 1. You have to approach every day with the same energy and enthusiasm as if it were your first day."

"I think it's important to be very humble. You have to be willing to admit when you're wrong and learn from your mistakes."

"I knew that if I failed, I wouldn't regret that. But I knew the one thing I might regret is not trying."

"I know what I'm doing. I'm building a company that will last for 100 years."