He told Lincoln: "If you are as happy to get into the White House as I am to get out of it, you must be the happiest man alive!"

VOA: special.2009.07.30

OK. Here's the story as I am told it.

在河内的中部有个寺庙。

麻省理工公开课 - 计算机科学及编程导论课程节选