With discipline, belief, and the right knowledge, we become the best we can be.

I had two ACL injuries in my life, and both of them happened when I was training with bigger guys; a heavyweight and a light heavyweight. Sometimes it's not even because the guy is good, you just get hurt.

What happens when you accept and embrace your fear? Fear becomes your weapon.

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.

There is a difference between a fighter and a martial artist. A fighter is training for a purpose: He has a fight. I’m a martial artist. I don’t train for a fight. I train for myself. I’m training all the time. My goal is perfection. But I will never reach perfection.

When I go on vacation I just like to do nothing - just hang out at the beach, go eat the best restaurants, and do nothing.

If you look good, you feel good, and if you feel good, you do good.