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The more I learn, the more I realize how much I don’t know.

In theory, there is no difference between theory and practice. But, in practice, there is.

具體藝術家努力以最精確和客觀的形式表達精神。

The anarchic nature of the international system forces states to compete for power.

在必要時，一個國家殺死暴君的權利永遠不應受到質疑。

經常要坦白地承認一項過失錯誤，這將使你的上司意料防備不及，才會給你一個機會去犯更多的錯誤。