The spread of liberal democracy and the integration of the world economy have created a situation in which the major powers are no longer willing to go to war with one another.

科学中最重要的事情是不要停止提问。

Quality is more important than quantity. One home run is much better than two doubles.

可持续性不仅仅是一个流行词；它是对未来世代的承诺。

语言是存在的家。人在其中居住。