When you're successful for so many years, the scariest part is that you're getting too comfortable because you've had so much success.

I'm trying to keep the face of my opponent more or less not damaged but eventually to execute the plan and knock him out.

All of my fights are planned. I study my opponents from A to Z. How he walks, how he looks, how he speaks, gestures of the human body, which is a certain language that provides you lots of information if you have the ability to read it.

Sometimes it's boring because it takes time, but it's enjoyable. So beating up people for a living is really fun.

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.

I know he's retired, but I'm a big fan of Shaquille O'Neal, his game and his personality. I have a pair of his shoes in my office. You see the size of his shoe and think, 'This is not real, this couldn't belong to a human being.' But he is human!

Politics is comparable to boxing. The only thing is that in politics there are basically no rules. In boxing, you can get a black eye, but in politics you can get poison in your food or a bullet in the head. It's definitely rougher and tougher than other sports.