I earned that the strong will always beat the weak, but the smart will beat the strong. Boxing is a tough guy sport. But in the end, the tough guy gets to clean the streets and be a bodyguard. In the ring, the tough guy is going to get hurt; at the end of the day, he's going to talk funny. Only the smartest win. So, I know it's cliché, but power - real power - comes from knowledge, comes from smarts.

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

At times, I come across as crude or crass, that irritates you when I come across like a Neanderthal or a babbling idiot at times. But I like to be that person. I like to show you all that person because that's who you come to see.

I paid a worker at New York's zoo to re-open it just for me and Robin (his wife). When we got to the gorilla cage there was 1 big Silverback gorilla there just bullying all the other gorillas. They were so powerful but their eyes were like an innocent infant. I offered the attendant $10,000 to open the cage and let smash that silverback's snotbox! He declined.

Everyone has a plan 'till they get punched in the mouth.

If they don't have that extreme addict personality, you can never understand how a guy can blow 300 or 400 million dollars. If I have to live at the top of the world, I also have to live at the bottom of the ocean. I don't know how to live in the middle of life.

Even though I heard him say he doesn't believe, cuz' that's why from watching Ali gave me the great deal of confidence and deep-down inner belief to believe there's no man fighting that could beat me.