In order to really enjoy a dog, one doesn't merely try to train him to be semi-human.  The point of it is to open oneself to the possibility of becoming partly a dog.

Edward Hoagland

I've seen a look in dogs' eyes, a quickly vanishing look of amazed contempt, and I am conviced that basically dogs think humans are nuts.

John Steinbeck

I myself have known some profoundly thoughtful dogs.

James Thurber

Dogs have not the power of comparing.  A dog will take a small piece of meat as readily as a large, when both are before him.

Samuel Johnson