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When me and Polar were south of Morgantown, WV we passed through a construction zone on I-79 as we zipped south toward Charleston. When my turn at the wheel was done, I thought about the orange signs announcing the presence of the construction zone and thought about it in another context.
A highway is always a work in progress. It takes maintenance to keep it in travel worthy shape. Over time they get improved, get rebuilt, repaved or reconstructed.
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In a sense, we are always under construction as well. You work toward and hope for continued positive evolution as you enter two, five, ten, twenty or however many years its been since the easy part of the body morphing started. What you hope for is that when it's all said and done, you end up being a better person today than when you first started down the transition highway.