(Alex gives the clue from the Mark Twain house in Hartford.) Twain was fond of saying, "I came in with" this celestial object in 1835, "and I expect to go out with it"; and in 1910 he did, passing away in this very bed
Twain was fond of 
saying, "I came in with" this celestial object in 1835, "and I expect to go out with it"
; and in 1910 he did, passing away in this very bed | Halley's Comet.