Dave Miller:"Chief, the rocks are gonna come crashing through here like an avalanche over an anthill. There won't be a living thing left. You won't even be able to tell where San Angelo was."
Prof. Arthur Flanders:"When they're no longer confined to the walls of the canyon, when they break out into the valley floor, their rate of multiplication is going to be frightening."
Chief Dan Corey:"You mean they'll grow even faster?"
Dave Miller:"Each one that shatters will make a hundred more."
Prof. Arthur Flanders:"When that hundred shatters, there'll be ten thousand of them. The third cycle will create a million. Unless we stop them, they'll spread over the whole countryside."
Dave Miller:"With enough rain, there's no boundary they can't cross."