If you still think you're a young pup then you are, no matter what the calendar says

Dogs are great. Bad dogs, if you can really call them that, are perhaps the greatest of them all.

A person can learn a lot from a dog, even a loopy one like ours. Marley taught me about living each day with unbridled exuberance and joy, about seizing the moment and following your heart. He taught me to appreciate the simple things-a walk in the woods, a fresh snowfall, a nap in a shaft of winter sunlight. And as he grew old and achy, he taught me about optimism in the face of adversity. Mostly, he taught me about friendship and selflessness and, above all else, unwavering loyalty.

In a dog's life, some plaster would fall, some cushions would open, some rugs would shred. Like any relationship, this one had its costs. They were costs we came to accept and balance against the joy and amusement and protection and companionship he gave us.

Standing out there in th dark, I felt many different things. One of them was pride in my fellow Americans, ordinary people who rose to the moment, knowing it was their last. One was humility, for I was alive and untouched by the horrors of that day, free to continue my happy life as a husband and father and writer. In the lonely blackness, I could almost taste the finiteness of life and thus it's preciousness. We take it for granted, but it is fragile, precarious, uncertain able to cease at any instant without notice. I was reminded of what should be obvious but too often is not, that each today, each hour and minute, is worth cherishing.

But Margaret was at an age when any apprehension, not absolutely based on a knowledge of facts, is easily banished for a time by a bright sunny day, or some happy outward circumstance. And when the brilliant fourteen fine days of October came on, her cares were all blown away as lightly as thistledown, and she thought of nothing but the glories of the forest.