Dear lady, you are new to the scene. When you have been with us a little longer, nothing will amaze you.”
-- Willy Wonka (chapter 1)

Importance: Here, Wonka is telling Grandma Josephine about how the Great Glass Elevator works. In his typical style, he never really completes the story telling her exactly how it works, but just gives enough to create some mystery. It is one of the first amazing things that the other grandparents (besides Joe) experience, and they are completely unprepared for it.

What if my beard were made of green spinach? Bunkum and tummyrot! You'll never get anywhere if you go about what-iffing like that. Would Columbus have discovered America if he'd said 'What if I sink on the way over? What if I meet pirates? What if I never come back?' He wouldn't even have started! We want no what-iffers around here, right Charlie? Off we go, then!
-- Wonka (chapter 3)

Importance: Grandma Georgina...