P. G. Wodehouse,
The White Feather — Chapter 6. ALBERT REDIVIVUS
“ Sheen had always been something of a hermit. In his most sociable moments he had never had more than one or two friends; but he had never before known what it meant to be completely isolated. It was like living in a world of ghosts, or, rather, like being a ghost in a living world. That disagreeable experience of being looked through, as if one were invisible, comes to the average person, it may be half a dozen times in his life. Sheen had to put up with it a hundred times a day. ”
