Hi, everybody. I'm here at Children's National Medical Center in Washington, D.C., visiting with some kids being treated here all the time for asthma（哮喘） and other breathing problems. Often, these ill
Hi, everybody. I'm here in Ohio, where I've spent the past couple days talking with folks about our central challenge as a country. Not just reclaiming all the jobs lost to the recession, but reclaimi
In other words, we need to think more modestly and subtly 换言之，我们得更为谦虚和细致地考虑 about when and how we can shape, rather than control, unpredictable and complex situations. 何时、怎样塑造而不是控制不可预测的复杂情况 It's a lit
