Thoreau's Journal: 10-Mar-1859
When I meet gentlemen and ladies, I am reminded of the extent of the inhabitable and uninhabitable globe; I exclaim to myself, Surfaces! surfaces! If the outside of a man is so variegated and extensive, what must the inside be? You are high up the Platte River, traversing deserts, plains covered with soda, with no deeper hollow than a prairie-dog hole tenanted also by owls and venomous snakes.