The challenge for me is his size because, for the first time in my career, I'll be meeting an opponent who is taller than me and has a longer reach.

I should say that mental strength is No. 1, experience [is] No. 2, physical strength is No. 3, and genetic ability that you're getting from Mother Nature probably comes after.

Nobody is born as a champion. You have to earn it through hard work. Get started!

I learned in my Ph.D. the discipline I needed to be successful. Most boxers are not that disciplined. They have talent, but the self-organization - the ability to schedule yourself and your priorities - is lacking. My studies were about the control of training on both the psychological and the physical side.

Defeat will help you. I've been there and done that. I shook it off and came back stronger. It's nothing to be scared about.

In the old days, when Muhammad Ali was fighting Ken Norton, Joe Frazier and George Foreman, there was a lot of excitement in the heavyweight division, I have to admit it.

These nuclear plants are more dangerous than people realize.