过去总是存在于现在，以我们并不总是理解的方式塑造着我们。
"The past is always present, shaping who we are in ways we don’t always understand."
The meaning of "knowing" has shifted from being able to remember and repeat information to being able to find and use it.
（一味追求智巧）对上而言遮蔽了日月的光辉，对下而言消蚀了山川的精华，对中间而言毁坏了四时的交替，就连地上的爬虫，空中的飞蛾，都会失去它们的本性。
——赠宋庆龄题词，1922年
International politics is a brutal and unforgiving arena, where states constantly strive to maximize their power and security.