Immigration can have positive effects on innovation and productivity.

Sustainability in agriculture isn't an option—it's a necessity for survival.

"If liberty means anything at all, it means the right to tell people what they do not want to hear."

成功采矿的关键不仅在于资源开采，还在于以可持续和负责任的方式进行。

德行与邪恶两个名词乃是以集体为对象的概念，是只有通过人们的频繁接触才能产生的。

过去是一个异国他乡；那里的人做事方式不同。