“There are men who call themselves mages and warlocks,” Maester Luwin said. “I had a friend at the Citadel who could pull a rose out of your ear, but he was no more magical than I was. Oh, to be sure, there is much we do not understand. The years pass in their hundreds and their thousands, and what does any man see of life but a few summers, a few winters? We look at mountains and call them eternal, and so they seem … but in the course of time, mountains rise and fall, rivers change their courses, stars fall from the sky, and great cities sink beneath the sea. Even gods die, we think. Everything changes."