Do you not know that the underground lands are shared by many worlds? It is all one underground, a vast place, and it is but a trick on which globe o… - R. A. Lafferty

It isn't my profundity that makes me a mental marvel, it's the amazing detail of my perception. There's nobody else who can keep so many things on his mind at once.

This is the Improbable Club," said the President-Emeritus in a heavy muffled voice, "and you things have made an improbable entry. Many unqualified persons have attempted to crash this Club, but you have done it literally. Whether you will be able to qualify for our high membership is another thing. It will not matter. We accept, for a brief moment at least, all who come here as members. We will quickly measure you one way or another. We have no living ex-members. Sit you down, all, and unwind your ears. Remember, each topper must be topped.

It was the most exclusive club in the world, in all the worlds, and this is a mighty pale statement to make about it. Let us emphasize that it was hard to get into.