If I am 100% prepared for the fight, my opponent has no chance to win the fight. I am saying what I mean: He has a 0% chance to win the fight. There is going to be no luck involved; there is going to be nothing else to stop me from winning the fight.

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.

Obsession is love in an extreme shape.

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.

There's certain things that you cannot cross, no matter who you are, what you're doing or where you're coming from.

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!

I Was Psychologically Sick For 3 Days Afterwards.