Now, 21 billion hours, it's a lot of time. 现在看起来，两百一十亿个小时是很多时间。 It's so much time, in fact, that the number one unsolicited comment that I have heard from people all over the world 真的是很多时间。事实上，我看到的最多的
OK, now, you all saw what changed, right? 好，你们都看到了什么东西改变了，对吧？ How many of you noticed that every one of those squares changed color? 有多少人注意到每一个方块都变了颜色？ Every one. I'll just show you by running it
June 2, 2008 THE PRESIDENT: Thank you all for coming. I want to thank Dr. Lindsey and Bob Carroll, and John and Marty -- thank you all for talking about the benefits and wisdom of keeping taxes low. I
As we reach toward our hopes, our task is to build on what has gone before--not turning away from the old, but turning toward the new. 追寻希望的过程中，我们的根基始于过去，不能摒弃过去，更要努力创造新事物。 In this past third of a cent
I want to start with a thought experiment. 我想以一个思维实验开始我今天的演讲。 Suppose I told you that I'm imagining an activity that takes place between consenting adults, doesn't hurt anyone, and results in
