States are rational actors that seek to maximize their power and security in an anarchic international system.

所有的变化，即使是最渴望的，也带着忧郁；因为我们留下的是一部分的自己；我们必须告别一种生活，才能进入另一种。

Nature speaks to us through patterns, even when those patterns are hidden beneath apparent randomness.

改变是不可避免的，但成长是可选的。