Who is the narrator, can she or he read minds, and, more importantly, can we trust her or him?
Third Person Omniscient
Man, this narrator sure loves to throw his two cents in. (And let's just be clear that the narrator isn't synonymous with the author, alright? Onward.)
It's not so much that the narrator is super judgmental about what the characters do or anything like that. It's more that he (we'll just call him a he) often likes to interrupt the story to wax philosophical, as in this characteristic passage:
Among the forces which sweep and play throughout the universe, untutored man is but a wisp in the wind. Our civilization is still in a middle stage, scarcely beast, in that it is no longer wholly guided by instinct; scarcely human, in that it is not yet wholly guided by reason. (8.1)
These little speeches give us food for thought, sure, but we've got to wonder if there's something else going on. Maybe the narrator thinks if he sounds smart, we'll trust him more? Or maybe he's trying to add significance to a story that seems to be about ordinary people?
Whatever it is, this narrator (just like the book's heroine) really seems to enjoy the spotlight.