It is both quiet and tranquil, at times It also powerful and destructive.

自然有时是宁静的安静的,但也是强大而有破坏性的。

普林斯顿公开课 - 人性课程节选

We should be approaching young people, encouraging them to engage, cross our religious boundaries and engage constructively with the same sort of sense of purpose that al-Qaeda recruits young people with a destructive divisive ideology.

我们应该靠近青年人，鼓励他们参与这项事业，跨越宗教界线,鼓励他们具有建设性地参与其中,带着与基地组织招募拥有破坏性的,分裂的意识形态的青年人时有的目的感。

普林斯顿公开课 - 人性课程节选