Hi everybody. Wednesday is Earth Day, a day to appreciate and protect this precious planet we call home. And today, there's no greater threat to our planet than climate change. 2014 was the planet's w
THE PRESIDENT: Thank you very much. (Applause.) Thanks for coming. Please be seated. Thank you very much. Peter, thank you very much for the introduction and the invitation. Laura and I are thrilled t
I ask you to judge my father by his results. 我请求你们根据成绩来评判我的父亲。 Judge his values by those he's instilled in his children. Judge his competency by the towers he's built, the companies he's founded, and
So we know that in primate hierarchies, if an alpha needs to take over, 灵长动物的社群阶级里，如果一个强势雄性想要夺权， if an individual needs to take over an alpha role sort of suddenly, 如果一个雄性突然想要争取首领这个角色， within a few da
