I play chess about four hours a day in training camp. You have to decide what move to use, or what combination of moves. I think less when I box because the reaction time is a lot quicker, but some people call me the chess boxer because they say I think too much in the ring. I take my time and they don't see the action they want. Some boxers just go in there and just throw punches and hope to win.

I am the heavyweight champion of the world, and the greatest heavyweight you have seen for a long while. With Tyson on the card, it is definitely an added bonus because Lewis-Tyson on the same card would be a great doubleheader. This is what the fans want to see.

For me, there's never any bad blood - unless you do something to me.

There were different heroes with different images. There was Mike Tyson, the animal, there was Evander Holyfield, the devout, the priest. And there was me, the thinker, the intellectual boxer. So there was something for every fan, if you like. The public could always identify with one of us.

I have always said I am a five-dimensional fighter.

At first I didn’t give a damn to go down in history. I wanted to win. But the more I won, the more I thought about leaving something behind. Yes, it's as important as hell to me. I want to leave something that people will remember me by. Of course, a lot of boxers want to do that. But it's not easy. Take Larry Holmes, he was the big man after Muhammad Ali, he wanted to emulate him, but for some reason the public didn’t take him like they did to Ali. I think people won’t fully understand what I contributed to the sport for years.

A boxer should quit at the top, as they say. But that’s complicated. There are plenty of people in boxing who make money out off you. And they tell you that you’ve still got it, that it’s still getting better.