After he stopped sleeping, he moved into the library, staying hidden when the doors closed in the evening so he could spend all night wandering the shelves, picking out books at random, reading straight through till dawn.
He estimated it would take him twenty five years to read every book the library had. In fact, it took him twenty seven.
By the time he finished, he could no longer speak with anyone. A long habit of absolute silence made that impossible. Instead he spent three days sitting quietly in his carrel, thinking back over all he had read. On the fourth day he made a decision, found the book that he wanted, began to re-read.