As Congress returns to work, the President calls on them -- and all of us -- to debate our differences vigorously but to live up to the spirit of common cause we felt following the tragedy in Arizona.
September 17, 2007 THE PRESIDENT: It has been my honor to welcome the Prime Minister of a steady ally and a good friend to the Oval Office. Not only does Prime Minister Sócrates represent a clo
A group of students was told that a small democratic country had been invaded and had asked the U.S. for help. 在一项研究中，一群学生被告知某个民主小国在遭到侵略后向美国寻求援助。 And they had to make a decision. What should they do?
Despite implicit and explicit questions of my right to be in an elite space, I'm proud to report that when I graduated, 我不知道自己是否能算精英阶层，但我很骄傲地宣称， I was the first black woman to earn a PhD in astrophysi
