A simple quote from the TV PBS show called Pets-A Very Natural History by Dr. Alan Beck of Perdue University. At least he got it right.
"The dogs looks to a human and says 'you give me food and shelter, you must be a god'. A cat looks at a human and says 'you give me food and shelter, I must be a god.' "
Another from the same show by Anatole France. "Until one has loved an animal a part of one's soul remains un-awakened"