I began, as most young people do, by reading the books I enjoyed. But I found that narrowed my pleasure, in time, until I spent most of my hours searching for such books. Then I devised a plan of study for myself, tracing obscure sciences, one after another, from the dawn of knowledge to the present. Eventually I exhausted even that, and beginning at the great ebony case that stands in the center of the room we of the library have maintained for three hundred years against the return of the Autarch Sulpicius (and into which, in consequence, no one ever comes) I read outward for a period of fifteen years, often finishing two books in one day.