I'm so busy during my everyday, when I go on vacation I need to pull the plug like they say, and to do nothing.

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's not about how you are when things go well, what defines you is how you are when you fail from an obstacle.

Sometimes I'm under the impression some of the fights happen that they shouldn't happen because a guy's cheating. Also, I think when something like this happen they should have not only a suspension but also monetary wise enforce a penalty. Maybe take the purse of the fighter to the other fighter.

I don't want to be an exception, because I was very outspoken about Performance Enhancing Drugs. It would be bad for my reputation if I would have an exemption [for doping test] - I don't want to have a free pass, I want to be like everybody else.

People often say, 'Ah, ultimate fighting is so violent,' but it's rooted in martial arts. Martial arts incarnate respect. You can't walk into a dojo and say to your sensei, 'Hey, salut tabarnac!' After every one of my fights I go and shake the hand of my opponent. I don't need to hate the other fighter to fight him well. It's a sport.

It's not the most powerful animal that survives. It's the most efficient.