The most significant threat to liberal democracy today is not from rival ideologies like communism or fascism, but from within—from the rise of populism and the erosion of democratic norms.

To be free is not to have no master, but to choose your own.

可以通过对过去事件的观察，形成对未来事件概率估计的一般规则。

Leadership means making tough decisions today that will benefit everyone tomorrow.

我相信我们在美国迷失了，但我相信我们会被找到。

研究的场所不是研究的对象。人类学家不研究村庄（部落、城镇、社区……）；他们在村庄里做研究。