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

So, I congratulate you of being here in this class, MIT this is really good solid foundation for whatever you go on to do, here at MIT.

所以我要恭喜来上这课的每一位同学，这确实是你要在,学任何东西的基础。

麻省理工公开课 - 化学原理课程节选