对黑洞的研究将我们带到了理解的边缘,在那里已知的物理定律失效,新的理论必须出现。
生活就像一盒巧克力,你永远不知道下一颗是什么味道。
预测未来的最好方式就是创造未来。
States are rational actors that seek to maximize their relative power in order to ensure their survival in a competitive international system.