Christopher McDougall

The 'Tarahumara' use their legs 'as designed.' By running at a young age with minimal footwear, they naturally develop the best biomechanical use of their legs. Cushioned shoes restrict foot movements and allow for over-striding. Short strides are natural.

Endurance, after all, is the only reason we even exist. We think of ourselves as nature's deadliest animals, but the truth is, a naked human is the biggest wimp in the wild. We have no fangs, no claws, no strength, and no speed.

We're designed for persistence hunting, which is a mix of running and walking. What's built into that kind of running is a sense of pleasure. You are designed and built and perfect for this activity, and it should be enjoyable and fun.

It's a wonderful profession, and it opens lots of doors, and I think it's quite right that people can accuse actors and actresses of being dilettante, but you learn on every job, whatever it is, the process moves you on in some way, and yeah, I want to expand my knowledge of our existence, I suppose.