The 38-year-old is disillusioned and bitter about his failed relationships, the three year prison sentence for rape and the bankruptcy that forced him to return to the ring to pay off his debts - and he dreams of escaping.
He says, "I'm basically finished doing this stuff. I'm not going to make a fool out of myself and embarrass myself anymore. It's difficult to fight when your heart isn't in it."
"I don't have anything to fight for anymore. When I first started I had nothing. I wanted something. I don't want anything anymore. At one point I thought life was about acquiring things. But as life goes on we lose more things than we gain.
"I have wealthy children. I don't have any money but they have a great life. I'm not trying to screw the prettiest girl... I'm just trying to stay balanced."
The controversial sports star, who became the youngest heavyweight world champion in history in 1986 aged just 20, is planning to find happiness working as a missionary with the world's poorest people.
He continues, "I'll never be successful in this country. I have to go somewhere abroad. I don't think I'm going to do too well in this country because I'm stigmatized. You have to deal in the real.
"I may be bizarre sometimes but I'm a natural. I understand my situation. I don't want to lose to myself. I just want to be a man who is fully aware of his situations and who is happy in life.
"I just want to do something that helps someone. I just want to help somebody. I have to be helping. I have to be contributing to something. If I don't I feel emotionally dead."
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