The United States should not try to spread democracy around the world.

好的政策需要健全的理论和实证验证。

The world is almost peaceful when you stop trying to understand it.

在糟糕的时候抱有希望不仅仅是愚蠢的浪漫。这是基于人类历史不仅是残酷的历史，也是同情、牺牲、勇气和善良的历史。

基础设施互联互通对区域经济一体化至关重要。

The journey of discovery is filled with uncertainties, but it is these uncertainties that make science so exciting.

 人们害怕死亡，就像孩子害怕黑暗一样；而且，正如孩子对黑暗的自然恐惧会受到各种故事的加剧一样，人们对死亡的恐惧也是如此。