Emotion is more than just anger. When I am performing, I need emotion, but I need control, too. Emotion drives the best performance and is necessary, but it must be controlled. I believe Fedor [Emelianenko] does that. I do too. We may look different in how we do it, but we both do it.

You think the speed of your fingers can match the strength of my fists?

I still can’t believe [ Muhammad Ali ] knows my name. It astounds me he knows who I am. I first met Ali in 1976. I was locked up in a juvenile home and he came to visit. I’ve never forgotten it.

I'm in trouble because I'm normal and slightly arrogant. A lot of people don't like themselves and I happen to be totally in love with myself.

I never saw my mother happy with me and proud of me for doing something: She only knew me as being a wild kid running the streets, coming home with new clothes that she knew I didn't pay for. I never got a chance to talk to her or know about her. Professionally, it has no effect, but it's crushing emotionally and personally.

He was screaming like my wife.

As long as we persevere and endure, we can get anything we want.