利玛窦进入北京四百周年时,国内外以此为主题的学术活动颇为活跃。余三乐先生撰写的《早期西方传教士与北京》颇有新意。撰写本书时,作者撷取了近年来国内外学者的大量研究成果,特别是一些尚未翻译出版的英文学术论文和著作。比如:美国著名学者魏若望(J·W·Witek)发表在罗马的论文《晚明时期利玛窦在中国的传教策略》,德国学者柯兰妮(C·Collani)不久前的论文《纪理安——维尔兹堡与中国的使者》等。美国学者邓恩(G·H·Dunne)的《巨人的一代——晚明时 Ricci’s four hundredth anniversary of entering Beijing, the academic activities at home and abroad as a themed quite active. Mr. Yu San-le’s book “Early Western Missionaries and Beijing” quite new ideas. At the time of writing, the author captured a large amount of research results of scholars both at home and abroad in recent years, especially some English academic papers and books that have not yet been translated and published. For example, a well-known scholar in the United States, W.W.Witek, published a paper in Rome entitled “Matteo Ricci’s Missionary Strategy in China in the Late Ming Dynasty,” a recent article by C. Schlander, a German scholar, Fort and China’s messenger “and so on. American scholar GW Dunne’s ”Giant Generation - Late Ming Dynasty."