But just as he knew the sun was obliged to rise each morning...

But just as he knew the sun was obliged to rise each morning in the east, no matter how much a western arisal might have pleased it, so he knew that Buttercup was obliged to spend her love on him. Gold was inviting, and so was royalty, but they could not match the fever in his heart, and sooner or later she would have to catch it. She had less choice than the sun.