Thirty years ago, Kristopher Schipper, the French researcher of Taoism, stumbled upon some ketzai booklets in Taiwan. As if he had discovered some rare treasure, he went mad for them, collecting some 500 in all.
卅年前研究道教的法國漢學家施博爾在台灣發現歌仔冊，如獲至寶地大肆搜購了五百多本。