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

I have to always make sure I don't stay in one place and spend too much time one subject. I have my wife tell me [through an earpiece], "Come back! You're taking too long on that subject." I need to be reeled in.

Yes, time flies. And where did it leave you? Old too soon...smart too late.

I'm a historian, and that freaks me out.

[Sometimes I] put on a ski mask and dress in old clothes, go out on the streets and beg for quarters.

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.

What I've done in the past is history and what I'm gonna do in the future is a mystery