Professor Mark Rowlands isn't a well known touring or recording musician. He's more of a rock star in the field of Philosophy. Mark is the chair of the philosophy department at the University of Miami and leading figure in the morality of animals who just released his latest book The Word of Dog: What Our Canine Companions Can Teach Us About Living a Good Life . Mark helps us expand upon some of the learnings we've gathered over our years of interviewing musicians about their dogs.