前言一位最有名望、兴趣最为广泛、最引人注目的学者,不仅在德国老家而且在自己的第二故乡中国竟然都被人遗忘了!留存在北京栅栏公墓的墓碑碑文中评价他是位广泛领域的杰出学者。一位近代史学家描绘他是多门学科的巨匠。然而,仍然没有一所学校、一个图书馆、一种场所,甚至没有一条街道小巷是 Preface One of the most prestigious, most interested and most notable scholar, not only in his hometown in Germany but also in his second hometown, was actually forgotten! Outstanding scholars in a wide range of fields. A modern historian portrays him as a master of many disciplines. However, there is still not a school, a library, a place, or even a street alley