If we have a small engine, and we have to pull the car up a steep hill,a difficult hill, the engine is more likely to collapse,to blow up.

如果我们用的引擎很小，想把车开上一个陡峭崎岖的山坡，引擎很容易损毁，爆炸。

哈佛公开课 - 幸福课课程节选

Do you worry that they could become radicalized like apparently some Muslims in...say ? in the UK? Born there, they are educated there, but they are radicalized to the extent that they are engaged in... ? bombings?

您担心他们可能变得极端,像一些。。。美国的,伊斯兰教徒那样吗,他们尽管在本地出生，受教育,还是容易变得极端，甚至参与。,爆炸事件？

普林斯顿公开课 - 国际座谈会课程节选