" (As a side note: I thought money was a bad idea way back when it was first invented. I remember the moment very clearly. This guy owed me a sheep, but instead of giving me an actual sheep he gave me five coins he said were worth the same as a sheep. "But I can't eat round pieces of metal, asshole," were my exact words.) "

― Gene Doucette , Immortal (Immortal, #1)