'I checked here, for the theme was carrying me along with it at a great pace, and I already saw before me a region on which I was little disposed to enter. I agreed with myself that this was idle musing, and resolved to go to bed, and court forgetfullness. But, all that night, waking or in my sleep, the same thoughts recurred, and the same images retained possession of my brain.'

- The Old Curiousity Shop, by Charles Dickens, p.13