How little do we know how other people live in the houses close to us! We see the houses looking like our own, and we see the people come out of them looking like ourselves. But a Chinaman is not more different from the English John Bull than is No. 10 from No. 11. Here there are books, paintings, music, wine, a little dilettanti getting-up of subjects of the day, a little dilettanti thinking on great affairs, perhaps a little dilettanti religion; few domestic laws, and those easily broken; few domestic duties, and those easily evaded; breakfast when you will, with dinner almost as little binding, with much company and acknowledged aptitude for idle luxury. That is life at No. 10. At No. 11 everything is cased in iron. There shall be equal plenty, but at No. 11 even plenty is a bondage. Duty rules everything, and it has come to be acknowledged that duty is to be hard. So many hours of needlework, so many hours of books, so many hours of prayer! That all the household shall shiver before daylight, is a law, the breach of which by any member either augurs sickness or requires condign punishment. To be comfortable is a sin; to laugh is almost equal to bad language. Such and so various is life at No. 10 and at No. 11.
— Anthony Trollope, Ayala’s Angel (1881)