I think that going on any reality show is not good for your mental health because you behave differently when you are being watched, and you constantly have an extra bit of awareness of what's going on all the time.

Life is a fight from the minute you take your first breath to the moment you exhale your last.

I try not to get caught up on how cool I am. That way nothing ever gets done. I'm always thinking about what I haven't done.

I got a lot of body paint on me in a short period of time. I would definitely do it again because Joann Gair is so brilliant, but I would definitely need, like, a good long break for it.

The Olympics is a once-in-a-lifetime thing. I was lucky enough to go twice, but most people only get one chance. And in judo you can train your whole life and it’ll come down to a split second: You can lose everything or win anything.

In MMA it’s a lot less intimidating because it’s not like you get one shot at a title every four years. You get a title shot every couple of months ... With the Olympics, you don’t always have this, so there is so much more pressure involved.

My father would say, 'Ronnie, you're going to be someone special. Whatever it is that you want to do, you're going to be the best in the world at it.'