人工智能的关键一直是表示法。

——1941年与美国外交官阿弗雷尔·哈里曼（Averell Harriman）的谈话

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.

所有好的写作都是在水下游泳并屏住呼吸。