成大事者 当知分享。 Thank you, President Crow, for that generous introduction. I really appreciate our friendship and everything we are doing together. Thank you to the Arizona Board of Regents, faculty and sp

I'm here today to talk about the two ideas that, at least based on my observations at Khan Academy, 今天，我要分享两个观点，至少基于我对可汗学院的观察得出的， are kind of the core, or the key leverage points for learning. 有关于学习的核

Interview of the President by YouTube LibraryWITH STATE OF THE UNION Q&A 1:45 P.M. EST MR. GROVE: Hello, everyone. We're here at the White House today for a very unique event -- an exclusive inter

We must do what no generation has had to do before. 我们必须做前人无需做的事情。 We must invest more in our own people, in their jobs, in their future, and at the same time cut our massive debt. 我们必须更多地投资于人民，投资于他们的

What kind of world do we want? This is a fundamental question that most of us are asking. 到底我们需要怎么样的世界？这是一个我们常常扪心自问的问题。 Does it make sense to participate in the existing world order? 这对已有世界秩序行得通吗？ We