What's the Biggest Change for You in 2015?

"I'm very set in my ways and I kind of follow patterns," he says. "The book has been more successful than, you know, it's kind of been the max level of success that I thought it could achieve" His Twitter is filled with people from every time zone throughout the day who wake up at 4:30 a.m. to work out on their own. He feels humbled by his fans' appreciation for him as a leader but doesn't know where 2015 will take him.