Many people have heard the remarkable example of devotion involving a Skye terrier dog who worked for a Scottish shepherd named Old Jock. In 1858, the day after Jock was buried (with almost nobody present to mourn him except his shaggy dog) in the churchyard at Greyfriars Abbey in Edinburgh, Bobby was found sleeping on his master's grave, where he continued to sleep every night for fourteen years.

Dogs never lie about love.

After a lifetime of affectionate regard for dogs and many years of close observation and reflection, I have reached the conclusion that dogs feel more than I do (I am not prepared to speak for other people). They feel more, and they feel more purely and more intensely.

Perhaps one central reason for loving dogs is that they take us away from this obsession with ourselves. When our thoughts start to go in circles, and we seem unable to break away, wondering what horrible event the future holds for us, the dog opens a window into the delight of the moment.

Every time I told my cocker spaniel, Taffy, my very first dog, that we were going for a walk, she would launch into a celebratory dance that ended with her racing around the room, always clockwise, and faster and faster, as if her joy could not be possibly contained. Even as a young boy I knew that hardly any creature could express joy so vividly as a dog.

Hardly any animal can look as deeply disappointed as a dog to whom one says "no."

The curiosity of cats is, like their affection, of a purity and intensity rarely seen in humans. We would be jaded when faced with the fiftieth paper bag. Not so our cats.