How to run an ultramarathon ? Puff out your chest, put one foot in front of the other, and don't stop till you cross the finish line.

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.

I run because long after my footprints fade away, maybe I will have inspired a few to reject the easy path, hit the trails, put one foot in front of the other, and come to the same conclusion I did: I run because it always takes me where I want to go.

Adventure books are my personal favorites. 'The Endurance,' a story about Ernest Shackleton's legendary Antarctica expedition, or 'Into Thin Air,' Jon Krakauer's personal account of the 1996 disaster on Mt Everest, are two notables.

I love surfing, rock climbing, cycling - all that stuff. But it's just amazing that I can inspire people with my running. It's humbling, really.

The marathon is an opportunity for redemption. Opportunity, because the outcome is uncertain. Opportunity, because it is up to you, and only you, to make it happen.

I love to run and I have some tips to keep it fresh and novel. I rarely use the same route twice. That keeps things new.