Read the excerpt from "Mending Wall." I see him thereBringing a stone grasped firmly by the topIn each hand, like an old-stone savage armed.He moves in darkness as it seems to me, Not of woods only and the shade of trees.He will not go behind his father's saying,And he likes having thought of it so wellHe says again, "Good fences make good neighbours."Based on the excerpt, what does the speaker think of his neighbor?