If they can organize as well in Yemen or Somalia or someplace else, then why fight in Afghanistan where no one has been successful for millennia?" U.S.public-opinion surveys show declining support for the war in Afghanistan.

VOA: standard.2009.11.23

It's important to take responsibilities, because no one else is going to do it for you.

重点是，你要为自己负责，因为没人会来帮你。

哈佛公开课 - 幸福课课程节选

It's important to take responsibilities, because no one else is going to do it for you.

重点是，你要为自己负责，因为没人会来帮你。

哈佛公开课 - 幸福课课程节选