My fear delivered one of the great lessons of my life: That someone without fear can’t push himself. He can’t get better. He can’t transform negatives into positives. He can’t open his world to creativity and invention, or even progress.

Nick Diaz is a champion so he's got the spirit that comes with it. So he's not going to give up mentally. You see a lot of guys give up mentally and that's why they get knocked out or submitted. They give up mentally before they lose.

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.

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.

A fight is 10% physical and 90% mental.

I used my Karate footwork to control the distance, and I use is as a penetration drill that I do, this is my speciality, the way I penetrate on people, the explosiveness and the timing. It all started with Kyokoshin and Sports Karate.

If I come back and I lose, at least I know I did everything I should have done, I have no regrets, I'll be happy. I can die happy.