But it is presumptuous to scrutinize too far into these matters: Ghosts have undoubtedly forms and customs peculiar to themselves. – Francis Grose, “Superstitions: A Ghost,” A Provincial Glossary, with a Collectio

A house is never still in darkness to those who listen intently; there is a whispering in distant chambers, an unearthly hand presses the snib of the window, the latch rises. Ghosts were created when the first man woke in the night. – J.M. Barrie, The Little Minister, 1891

He stood looking after them… as though he had perceived that they had come back accompanied by a ghost a-piece. – Charles Dickens, Little Dorrit