I eat nothing that's processed or refined - no high-fructose corn syrup, no sugar, no trans-fats. I eat a lot of fish and monounsaturated fats from olives, olive oil and nuts. A lot of organic, fresh fruits and vegetables. No bread. No gluten. No wheat. No rice.

Running is about finding your inner peace, and so is a life well lived.

When I ran across America, for 75 days I ate 10,000 calories a day. I still lost about five pounds.

People think I'm crazy to put myself through such torture, though I would argue otherwise. Somewhere along the line we seem to have confused comfort with happiness... Dostoyevsky had it right: 'Suffering is the sole origin of consciousness.' Never are my senses more engaged than when the pain sets in. There is a magic in misery. Just ask any runner.

If you keep chasing your dreams, one day you'll catch them.

I do a lot of marathons as training runs. If I'm somewhere and there's a marathon, I'll sign up and just go run it.

Regardless of how distant your dreams may seem, every second counts.