Humans aren't built to sit all day. Nor are we built for the kinds of repetitive, small movements that so much of today's specialized work demands. Our bodies crave big, varied movements that originate at the core of our body.

The reward of running — of anything — lies within us … We focus on something external to motivate us, but we need to remember that it’s the process of reaching for that prize — not the prize itself — that can bring us peace and joy.

We strive toward a goal, and whether we achieve it or not is important, but it's not what's most important. What matters is how we move toward that goal.

Every single one of us possesses the strength to attempt something he isn't sure he can accomplish.

Humans aren't built to sit all day. Nor are we built for the kinds of repetitive, small movements that so much of today's specialized work demands. Our bodies crave big, varied movements that originate at the core of our body.

As powerful as our legs are, as magnificent as our lungs and arms and muscles are, nothing matters more than the mind.

Overcoming the difficulties of an ultramarathon reminds me that I can overcome the difficulties of life