Relentless Forward Progress: A Guide to Running Ultramarathons

Those who run long are not freaks of nature.

If anything sets us apart it is a kind of sensitivity. We can hear a faint chord vibrating on old and brittle strings. It begins to resonate through us when we rise predawn for a morning run. The sound builds the longer we stay at it. On a long run through the mountains our attention becomes focused, in tune, automatic. Each footfall and each breat