Tyson Fury has vowed to continue proving his doubters wrong as he targets a long reign of heavyweight boxing dominance.
The WBC world champion is preparing for a third fight against American Deontay Wilder, who he stopped in February to claim the title.
Fury insists he has never changed, nor have the people who are queuing up to tell him he cannot succeed.
"They said I'd never do it, they said I would never have the dedication," Fury said to Sky Sports.
"Then they wrote me off because I wasn't body beautiful like everybody else, then they wrote me off because the heavyweight champion of the world was Wladimir Klitschko.
"I had to go to Germany, that was a write-off, and then they wrote me off because I went to 28 stone and had mental health problems, but that couldn't keep me down.
"Then they wrote me off because I had to fight the biggest puncher in the history of boxing [Wilder] after only two, petty comeback fights, but that didn't keep me down.
"Then they wrote me off, because I'm all washed up and I can't take a punch anymore, and then they wrote me off because I got a massive cut. Then they wrote me off because I had 10 changes of trainers.
"Then they wrote me off because Wilder was going to be better the second time around.
"Then they wrote me off because they said they didn't believe in what I was going to do and I'm a feather-duster puncher, and I can't crack an egg, and I'm useless.
"But here I am today, stand-alone heavyweight, leading superstar in boxing. I'm still fat, still ugly, still bald, still a big man, and I'm still unstoppable."
Fury believes he has "completed" boxing, but with retirement plans put to one side he now wants a long stint as champion like Klitschko had before their 2015 bout.
He added: "I've achieved more than any active heavyweight alive today. If I never have another boxing fight, I'll be happy. I've completed the game.
"Nothing to prove to anybody but why walk away when I'm still only young? Klitschko did it until he was 40. A lot of the great champions are continuing and continuing.
"I ain't boxing for money, I ain't boxing for fame, I ain't boxing for a belt. I'm boxing because it keeps me mentally happy and I like to do it.
"Hopefully I box until I have a good sit down with all the team and we all decide it's time to walk away, while I'm on top, and then sail away into the sunset."