I'm a martial artist, and I don't train because I have a fight; I train because it's my lifestyle, and I'll train every day if I'm not hurt.

I retire from competition with great pride at having had a positive impact on my sport. I intend to keep training and practicing martial arts for as long as I live, and I look forward to watching the new generation of champions carry our sport into the future.

My mentality is like a Samurai: They used to every day work on their technique to make themselves almost perfect. Because perfection is impossible, but every day, you get closer to perfection.

It takes a lot of discipline to become and stay champion. It also takes a lot of discipline to stop while still feeling that you're in the best physical and mental shape of your life, but I've always planned to leave the sport when I'm at the top and in good health.

When people tell me I can't do something, that's what excites me. It makes me perform better.

It’s OK to get butterfly in your stomach; the key is to learn how to make them fly in formation.