"The world will little note, nor long remember what we say here, but it can never forget what they did here.

VOA: special.2009.11.12

The British Government will never promise to pay you 10% more each year because they can't do it.

英国政府永远都不会承诺给你们,每年支付你们高于10%的利息,因为他们根本就做不到

耶鲁公开课 - 金融市场课程节选

Corinth always needs that kind of stuff, so we sell you our wheat, you sell us your pottery, you sell us good wine that we can't grow yet and maybe never will be able to grow in our neighborhood, so on and so forth.

科林斯很需要这些作物,所以我们销售给你们小麦,你们销售陶器,美酒给我们,这些我们暂且无法生产,而且我们周边地区也许永远无法生产这些,诸如此类的作物

耶鲁公开课 - 古希腊历史简介课程节选

"Let me say this as clearly as I can: The United States is not, and will never be, at war with Islam."

VOA: special.2009.04.11

There're also changes of what you can teach, extends what you can teach, because you can get to concept which are really quite sophisticated that you will never teach it at the introductory level, because the math is the least that you can make it quantitatively, because you have a visualization that shows physically what's going on.

同时这也能改变,教学内容，你能教授的程度，因为你可以定义,那些通常很难的,你在入门阶段都不会遇到的,抽象阶段，因为数学是你最不能,用定量手段来解决的，因为你有一个直观过程,知道什么正在进行。

麻省理工公开课 - 媒体、教育、市场课程节选

"Let me say this as clearly as I can: The United States is not and will never be at war with Islam,".

VOA: standard.2009.04.06

But they can never engage in those efforts, if we do not do the job that I am confident we will do tomorrow morning at 7:00 AM on Christmas Eve, and that is to renew the American dream, and revive our middle class, and rebuild the foundation upon which future generations will stand.

VOA: standard.2009.12.24