"People think I'm crazy to put myself through such torture, though I would argue otherwise. Somewhere along the line we seem to have confused comfort with happiness. Dostoyevsky had it right: 'Suffering is the sole origin of consciousness.' Never are my senses more engaged than when the pain sets in. There is a magic in misery. Just ask any runner."

"I do follow a version of the Dukan diet, but I don't follow it to the extreme so a lot of fish and vegetables. If I want chocolate I'll let myself have a bit of chocolate in moderation."

"Most days, I have a slice of toast, then lie in a hot bath for an hour to get up a sweat. I have a sauna at the racecourse and then go and ride. On the way home, I might stop at a service station and have a bar of chocolate and a Diet Coke. And that's it, basically."

"I do heavy weights in the morning for about an hour, and then I do 45 minutes of higher-volume lifting in the afternoon. My least favorite is the legs... I do quite a few chin-ups and rows. I do mostly old-school lifting with a lot of squats."

"I'm sure I frustrate the trainers - in fact, I know I frustrate the trainers to no end. But I think there's a very fine line. I listen to their advice. I take their medical expertise very seriously. But then I also, the reason I am where I am, the reason I play the way I play, is because I push beyond normal."

"If your diet is dialed in, you can train in a pretty subpar manner and still get passable results. On the other hand, if your training is fantastic but your diet is crap, you have a harder road ahead of you."

"I don't want to be knocked out. But the contact and the focus and the energy I get from sparring gives me energy to make movies, energy to be a dad, energy to be a friend, and, you know, makes me feel, probably, a lot younger and behave a lot younger than I am."

"Much in the way Olympic athletes optimize their game by paying an enormous - borderline maniacal - amount of attention to things like diet, exercise, sleep, and of course the essential R&R, we all would do well to pay more attention to those key aspects of our lives that comprise our overall health equation."

"The reason we have such a difficult time losing weight permanently is not because we are making bad choices, but because we are not stopping our automatic subconscious programmed behaviors in their tracks."