It's a hard game, boxing. You're up every morning running every day, you train in the afternoon, you're dieting, you're up and down in weight and it can wear you down.
I've fought everybody without ducking anyone. I have beaten 10 undefeated guys, and I never was comparing myself to the greatest in the sport. I was not thinking of breaking any records. I'm just enjoying my time in boxing.
For the birth of one champion, there are many young boxers behind them who had setbacks. In terms of that, I think boxing is very dramatic.
I started talking about retiring in 1997. This is a brutal game, and 25 years of it ain't good for your health. After I get past Tarver on Saturday, give me Klitschko or Tyson. Otherwise, I'm outta here.
There's many ups and downs in the fight game.
Boxing does not favor boxers over 35 who rely on reflexes.
The thing is with boxers we don't come from Cambridge and places like that, we come from council estates. So in boxing it's very, very hard.
To portray not only a boxer but a boxer like Roberto Duran, I needed to understand all the difficulties and the pressures of the sport itself.
You know if you want to be a boxer the first time you get hit on the nose.
Boxing is a really difficult sport! So I don't want to tell you I wouldn't try it, but I guess everybody that does know about it, my friends, they tell me how difficult it is, and I'm like, 'Eh.'
I've had such a tough time making weight at 155 all the time. I'd make the weight, but I don't feel like the same kind of Sage. My power in my punches, my explosion, my speed - it just doesn't feel the same.
Make no mistake, the days and hours before going into the ring can be stressful for any boxer. The bigger and tougher the fight the greater stress, But if a boxer knows he's stepping out of his league it's even worse.
Once you come to America, you're fighting top fighters. They're not going to let you get away with the guys you're fighting in England: you're going to have to fight constant monsters.
I picked Tony Bellew because he is the man that takes the biggest challenges. He is not the usual type of fighter that will come, see how hard it is, and quit. He will come to fight until the end. These are the kind of fights that the world wants to see.
The three toughest fighters I ever fought were Sugar Ray Robinson, Sugar Ray Robinson and Sugar Ray Robinson. I fought Sugar so many times, I'm surprised I'm not diabetic.
I'm very lucky because less than one percent of boxers get out of the game financially secure.
My career has been very difficult. People respect the fact that I haven't just turned professional like Amir Khan or Audley Harrison, and it's been, 'Here's a million pound' - for spoilt brats to fight a couple of fights.
I used to hear other boxers talk about levels and it used to frustrate me. But now I understand: sometimes it doesn't matter how much you prepare, there are just people you can't beat.
Whether boxing is fixable or not remains to be seen. I'm going to give it a shot.
Every boxer needs to be able to punch, but none more than me, and that's because I'm not that skilful, and I'm one of the smallest heavyweights you'll ever see.
I always expect unexpected challenges. Boxing is not an easy sport.
I just try to stay half way decent looking. Boxing's a rough sport and you get hit a lot.
I am interested in the heavyweight division, and I'll tell you why: Many experts say that I shouldn't go up in weight, that I'm too small for it. My size does not allow me to be victorious in this division.
So many fighters who fight Golovkin have lost before they've entered the ring.
