We train together to make each other great.

Be unrelenting. If you don't believe, then who will?

Don't try to rush progress. Remember -- a step forward, no matter how small, is a step in the right direction. Keep believing.

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.

Don't ever discourage someone from trying to better their life and health

Watching the world's best compete fires you up to achieve your own feats of greatness. When it comes to running, participation and spectating go hand in hand.

Hill sprints are good for everyone!