解读：一次性快乐稍纵即逝，如短暂刺激；可重复的快乐源于内心充实、自我成长，更值得投入精力，引导追求深度、持久快乐。

Institutions matter more than we sometimes acknowledge.

数学是上帝用来书写宇宙的语言。

The task of a diplomat is to pursue the maximum interests for their country while avoiding unnecessary conflicts and frictions.

译文：即使处在平安的环境，也要时刻想到可能会有突如其来的危险。