"This moment of peril must be turned to one of progress," President Barack Obama said this morning, as he signed his first two Presidential Memoranda aimed at getting us on the path to energ
You see the larger wing area here. 你们可以看到这儿有面积更大的翅膀。 Also, clearly, it was such a powerful thing,we wanted to try and bring other people but we couldn't figure out how to do it. 而且，这还是件很有影响力的事情，我们
幸福的代价：这篇演讲者介绍了很多种世界顶级贵的奢侈品，有吃的、用的、住的，试图探讨这些奢侈品的价格和他们带给人们的享受是不是成正比。作者了他个人的体验发现有些他喜欢觉得值，有些他觉得不值那个钱。最后还提到其实高标价本身也可以增加人们的满足感。也就是本来一块钱的饼干标价100出售，反而提高了人们的幸福感，很诡异的事。 Benjamin Wallace: The price of happiness
