“But stories are fragile. Like people's lives. It only takes a word out of place to change them forever. If you hear a lovely tune, and then you change it, the new tune might be lovely too, but you've lost the first one." "But if I stick to the first tune, then I've lost the second." "But someone else might discover it. It's still there to be born." "And the first tune isn't?" "No," Tallis insisted, although she was confused now. "It has already come into your mind. It's lost forever." "Nothing is lost forever," Mr. Williams said quietly. "Everything I've known I still know, only sometimes I don't know that I know it." All things are known, but most things are forgotten. It takes a special magic to remember them. "My grandfather said something like that to me," Tallis whispered. "Well there you are. Wise Old Men, one and all…”