Captain Stormfield's Visit to Heaven

"There's plenty of suffering here, but it don't last. You see, happiness ain't a THING IN ITSELF - it's only a CONTRAST with something that ain't pleasant. That's all it is. There ain't a thing you can mention that is happiness in its own self - it's only so by contrast with the other thing. And so, as soon as the novelty is over and the force of the contrast dulled, it ain't happiness any longer, and you have to get something fresh. Well, there's plenty of pain and suffering in heaven - consequently there's plenty of contrasts, and just no end of happiness."