He did have this thing about his appearance.

他确实对他的外表很注重。

麻省理工公开课 - 电影哲学课程节选

One thing that he always did when he went on his grand tour is he always took fake names, as if he was signing into a hotel as Mr. and Mrs. John Smith.

当他环游西欧时,他常常使用假名,就好像入住酒店时登记用"张三"或"李四"做名字一样

耶鲁公开课 - 欧洲文明课程节选