Thank you all. I will try not to make this too long. I know it's wet out there. It's drier up here, so we're luckier. But I truly want to thank President Bravman for that kind and very gen

This weekend, we’re coming together, as one nation, to mark the 10th anniversary of the September 11th attacks. We’re remembering the lives we lost—nearly 3,000 innocent men, women a

Go figure. 想想看 But I got a little bad news for you folks. I got some bad news. 我这里也有些坏消息想对你们说，我有些坏消息 This isn't for the one in four. This is for the four in four. 比例不是四分之一，而是四分之四 We are not equipp

Over the next five minutes, 在接下来的5分钟里 my intention is to transform your relationship with sound. 我想把你们与声音的关系作个转变 Let me start with the observation that most of the sound around us is accidental, 首先，请允

Our connection to reality is never just perception. 而我们与现实的联系从不会只是感知 It's always, as Karl Popper put it, theory-laden. 而是如卡尔·波普尔所说，充满着理论假设 Scientific knowledge isn't derived from anything. 科学知