People like Chiang can recall clearly the era of "banned books," when they had an especially strong interest in going to the second-hand-book shops on Kuling Street to try to find old copies of works that had later been banned.
類似蔣勳經歷過「禁書」年代的人，當時會產生特別強的興趣去牯嶺街尋找禁書閱讀。