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.

Marley fez-me pensar no carácter efémero da vida, nas suas alegrias passageiras e oportunidades perdidas. Fez-me lembrar que só temos uma chance de chegar ao ouro, sem repetições.

It's just the most amazing thing to love a dog, isn't it? It makes our relationships with people seem as boring as a bowl of oatmeal.

. . . owning a dog always ended with this sadness because dogs just don't live as long as people do.