The death knell of childhood and the herald of adulthood is when you just stop running. Remember when you were young, you had such enthusiasm about things that you couldn't and wouldn't wait a second more than you had to to get to it. And you ran. Sometimes you ran just for the hell of it. You had nowhere you had to be in a hurry, you just wanted to run alongside the wind, and in your mind, you really were running as fast as the wind.

When you become and adult, there's a spirit-leadening surety you acquire that anything and everything worth anything will wait for you to reach it. The best we do is an odd half-trot. When was the last time you ran as hard as you could for no reason other than to feel like a kite with an endless string?