Tupac Shakur always wanted me to smoke weed with him, and I never did it, and I wish I did...That's my biggest regret.

I always had a lot of responsibilities. I just didn't take them. I just decided to take care of my responsibilities, live up to them. That's a pretty interesting job. It's harder than being heavyweight champion of the world.

Common sense is so very simple but very difficult to grasp.

I don't have to be that gentleman ["baddest man on the planet"] anymore. Now I have to be "this" guy. And in order to be "this" guy, I have to be smiling, I have to be gregarious, I have to be entertaining, and I have to be friendly. This is what my career needs now. I've adapted. But 20 years from now, I may need a different persona.

Sometimes they laugh at things I don't think are funny, but I believe if they're laughing at me, it's a good show.

I'm happy because - I'm not doing anything deceitful, I think, to my family. I'm successful because I don't have to sleep with one of my friends' girlfriends or wife or something. That's why I'm successful, that's success to me. I'm not dead, I'm not in the gutter - that's success to me.

There's no way I would want to hurt him or bust him up. That's why, for the sake of the family as well as himself, I will take him out in the opening round.