过去是一个陌生的国度；那里的人们做事方式不同。

No matter what he does, every person on earth plays a central role in the history of the world. And normally he doesn't know it.

释义：跟交情浅的朋友说过多的隐私的事情，是愚蠢的。提醒人们在与人交往时，要根据实际情况和关系的深浅，采取适当的态度和行动。