And indeed it was 225 years ago today that the Constitutional Convention opened in Philadelphia and our founders. 的确如此225年前的今天费城召开了制宪大会 Citizens all began crafting an extraordinary document Yes, it ha

Now, the idea is not as crazy as it sounds. 其实，这个想法并不像听起来那么恐怖。 I started a contest four years ago called Dance Your Ph.D. Instead of explaining their research with words, scientists have to explain it

在这个2009TED大学演讲里，攀岩老手马修查尔志分享了他从攀岩中体会到的9个感悟。这些道理同样适用于海平面上的生活。   Matthew Childs' 9 life lessons from rock climbing It's pretty simple. There are nine, sort of, rules that I discovered after 35 years

THE PRESIDENT: Everybody, have a seat. MS. BAKER: Hello. My name is Janice Baker. I havethe privilege to say that I'm the first person in the state of Delaware to enrollfor health insurance throug

Remarks of President Barack Obama National Prayer Breakfast Thursday, February 5th, 2009 Washington, DC Good morning. I want to thank the Co-Chairs of this breakfast, Representatives Heath Shuler and