I don't feel like myself unless I run. It's how I deal with sadness and happiness. I need it. It's like therapy.

I have a power word that I use-when I qualified for the Olympics in 2008, it was fighter. That way when I'm in the race and I get to those dark moments, I can think of the word and it evokes that emotion for me.

Once you make the decision that you will not fail, the heart and the body will follow.

We train together to make each other great.

As badly as I want a medal, I know there is a lot of luck involved in that. I want to put myself in position to be in the top three, give it my all and hope luck comes my way.

Never underestimate the power that one good workout can have on your mind. Keeping the dream alive is half the battle.

I try to think about positive things - how great my form is, how my arms are swinging, my breathing, how loud people are cheering. My sports psychologist taught me there are a million things telling you you can't keep going, but if you find the things that say you can, you're golden.