Some say "Merry Christmas". From the world I come from, we say "Happy Hogswatch"!
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“IT'S THE EXPRESSION ON THEIR LITTLE FACES I LIKE, said the Hogfather.
"You mean sort of fear and awe and not knowing whether to laugh or cry or wet their pants?"
YES. NOW THAT IS WHAT I CALL BELIEF.”
― Terry Pratchett, Hogfather