The Kingdom of God is Within You

How to Observe Morals and Manners is a sociological treatise on methods of observing manners and morals written by Harriet Martineau in 1837-8 after a tour of America. She stated that she wasn't looking for fodder for a book, but also privately remarked that "I am tired of being kept floundering among the details which are all a Hall and a Trollope [who wrote Domestic Manners of the Americans] can bring away." As opposed to Victorian prescriptive handbooks of how societies ought to behave, Martineau focuses on observing locals on their own terms and emphasizes the need to accept cultural relativism of other people.