Here is GDP per capita from 1900 to 1929. Now let's imagine that you were an economist in 1929, trying to forecast future growth for the United States, 这是人均国内生产总值从1900年到1929年。让我们想象一下，在1929年，如果你是一位经济学家

The essence of freedom is that each of us shares in the shaping of his own destiny. 什么是自由的精髓，那就是共同努力塑造未来。 Until he has been part of a cause larger than himself, no man is truly whole. 在这项伟大事业中，没有人是完整的

Remarks of President Barack ObamaSaturday, May 29, 2010Weekly AddressWashington, DC This weekend, as we celebrate Memorial Day, families across America will gather in backyards and front porches, fire

Thank you, Arena, for such a generous introduction. And on behalf of the entire HeForShe team, I also want to thank UNESCO for all of its support. It's meant a lot to us. Thank you all for being h

THE PRESIDENT: Thank you very much. Please, have a seat. Thank you. Thank you, MIT. (Applause.) I am -- I am hugely honored to be here. It's always been a dream of mine to visit the most prestigious s