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解釋：君子有三件值得可惜的事：一輩子不學(xué)習(xí)，是第一件可惜的事；一天無所事事，是第二件可惜的事；一個人的名聲敗壞，是第三件可惜的事。

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

The past is never dead. It's not even past.

講故事的人的首要職責是講故事。

The art of invention consists in finding out the causes of known effects.

A prophet is not without honor except in his own country and in his own house

The power of abstraction allows us to see the common threads that run through seemingly disparate problems.

創(chuàng)新是將變化視為機會而非威脅的能力。