The manuscript was with papers belonging to a friend of Einstein, Paul Ehrenfest, who was a professor at Leiden.

这份手稿是在爱因斯坦的老朋友、莱登大学教授保罗·埃伦费斯的学术论文中发现的。

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His relationship with Paul Roberson here at Princeton, Einstein would embrace him, not that he would agree with everything, was so tied to working people's and poor people's.

他就和普林斯顿的Paul，Roberson的关系很好，爱因斯坦会拥抱他，不是因为他认同每一件事，是紧紧与工人阶级和穷苦人民的心联系在一起的。

普林斯顿公开课 - 人性课程节选