Either I believe I can be the best heavyweight fighter in the world and beat everyone, or I will not. I feel I can beat everyone as a heavyweight.

I probably do better not being in politics. They have too much control over you when you are in politics.

You cannot let something deter you from giving someone a rematch unless you are going to retire. If you are going to retire, go ahead, but if not, you need to do what you are going to do. You do not have to keep playing with the game of boxing. If you are going to fight, fight.

I beat Larry Holmes and George Foreman. I whupped Mike Tyson twice. I had my ear chewed off and spat on the ground in front of me. I've seen everything it is possible to see in boxing. I know this business better than anyone. So I live and die by my own decisions.

The game's been good to me and I hope I've been good to the game. I'm 50 years old and I've pretty much did everything that I wanted to do in boxing.

Well, when I think of steroids I think of an image. You have the advantage over someone, which is a form of cheating. I guess it wouldn't be right unless it was legal for everybody. Reason it's not legal for everybody is because it can hurt people seriously.

Deep down, I reckon the sweetest moment will come when it's finally all over. When, at last, I know that I can stop fighting. Of course it'll also be a little sad. The sweetest moments, y'know, always come with just a little sadness.