It was a way of meeting people she had never been able to meet—and, through them, meeting the person she had become.… When she was seventeen, Yuko believed that books were windows. She would sit at her desk long after everyone else in the house had gone to sleep, reading novels, essays, biographies, philosophy, and books about distant countries. She had no particular system. One week she might be reading a Russian novel; the next, a book about anthropology; after that, something about economics or astronomy. What she loved was not knowledge itself, but the feeling that another human being had temporarily lent her a pair of eyes. A book could make her understand why a stranger behaved as he did. Another could persuade her that an opinion she had always considered absurd was perfectly reasonable from another point of view. Some books contradicted one another completely, yet she enjoyed that contradiction. At university, her friends sometimes teased her. “You re...