I'm a nut case, but that is what I believe.

Fighting is spiritual. It appears to be physical from the layman's eyes. In my fights, I seemed to be angry and mad - all that stuff you saw me doing, the yelling and screaming and being mean in the ring - but I'm cool as a cucumber. I can hear everybody talking around me outside of the ring. I can see everybody. I know what is going on.

I'm the best fighter in the world. No one can beat me....My objective is to inflict as much pain as possible, to win and win spectacularly...Ever since I was 12 years old, I was groomed to be the heavyweight champion of the world. I've been prepared to handle the pressure, the dealing with the press, everything.

I just want to be humble at all times.

Everybody has a plan until they get punched in the mouth. Then, like a rat, they stop in fear and freeze.

Discipline makes hard men. Every hard man is capable of being a killer. But every killer is not capable of being a hard man. They can't endure that much. It's all about the endurance. That's why they become killers. Because they can't endure the pain. They need to kill the pain to stop it.

I'm the biggest fighter in the history of the sport. If you don't believe it, check the cash register.