Extreme heroism springs from something that no scientific theory can fully explain; it's an illogical impulse that flies in the face of biology, psychology, actuarial statistics, and basic common sense.

Way before we were scratching pictures on caves or beating rhythms on hollow trees we were perfecting the art of combining our breath and mind and muscles into fluid self-propulsion over wild terrain.

We wouldn't be alive without love we wouldn't have survived without running maybe we shouldn't be surprised that getting better at one could make you better at the other.

You don't have to be fast. But you'd better be fearless.

Try the meditation of the trail, just walk along looking at the trail at your feet and don't look about and just fall into a trance as the ground zips by," Kerouac wrote. "Trails are like that: you're floating along in a Shakespearean Arden paradise and expect to see nymphs and fluteboys, then suddenly you're struggling in a hot broiling sun of hell in dust and nettles and poison oak... just like life.

We're constantly told that running will ruin our knees and outrage our hearts, but for nearly all of human existence, it was associated with freedom, vitality, and eternal youth.

human urine is both nutrient-rich and an effective tooth whitener