Hi, everybody. This week, we made it official – I'm going to Cuba. When Michelle and I go to Havana next month, it will be the first visit of a U.S. president to Cuba in nearly 90 years. And it bu
When I was a young man, a young biologist in Africa, I was involved in setting aside marvelous areas as future national parks. 我年轻的时候，是非洲的一个年轻生物学家，我参与了一个项目，为国家公园规划未来的野生区域。 Now no sooner — this was in
So here's two questions 每当我思考这个问题 that I have in my head when I think about this problem. 两个疑问一直在我脑子里打转 The first is: 第一 Are cities part of biology? 城市是生物界的一部分吗 Is London a great big whale? 伦敦是一只大
Philadelphia came out in 1993 most of you were probably still in diapers. 《费城往事》是在1993年上映那时候你们很多人可能都还在裹尿布 Some of the professors, too that cracked me ups... 包括有些教授瞧 我把自己都说笑了 But it was a good movie Re
