Dogs know their humans. They recognize our voices, take their cues from our behavior, and sense our emotions. But the canine understanding of humans is limited; they would not be able to understand even a simple text or argument. They lack a language that makes a conceptual world possible. At least, to us, such seems to be doggish existence. Their understanding of humans is limited and instrumental. They know that which is necessary to be fed, walked, and groomed. They know that which is important to keep their humans serving them.