You have to learn the opponent psychologically inside out and mental strength is one of the important makers. You're either gonna break it or make it.

The first thing I learned in boxing is to not get hit. That's the art of boxing. Execute your opponent without getting hit. In sports school we were putting our hands behind our backs and having to defend ourselves with our shoulders, by rolling, by moving round the ring, moving out feet.

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.

Aggression means emotions. Emotions means you’re gonna get off your plan and that means you’ll lose the fight.

Obsession is love in an extreme shape.

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.

You lose or you win the fight - and anything in life - in your mind. I can look at how the person walks, how he speaks, his expressions. It's a wisdom. Eyes are the mirror of the soul. So you can read a lot.