“But doesn't every precious era feel like fiction once it's gone? After a while, certain vestigial sayings are all that remain. Decades after the invention of the automobile, for instance, we continue to warn each other not to 'put the cart before the horse'. So, too, we do still have 'day'dreams and 'night'mares, and the early-morning clock hours are still known colloquially (if increasing mysteriously) as 'the crack of dawn'. Similarly, even as they grew apart, my parents never stopped calling each other 'sweetheart'.”