States are inherently aggressive and expansionist because they exist in an anarchic international system where there is no higher authority to keep them in check.

The reality is: sometimes you lose. And you're never too good to lose. You're never too big to lose. You're never too smart to lose. It happens.

事实是，我们都在试图弄清楚如何生活。

I know that I am intelligent，because I know that I know nothing.

历史首先是那个遗产的创造和记录；进步是其日益增长的丰富性、保存、传递和使用。