英语原文：

Good morning. How are you? It's been great, hasn't it? I've been blown away by the whole thing. In fact, I'm leaving. (Laughter) There have been three themes, haven't there, running through the conference, which are relevant to what I want to talk about. One is the extraordinary evidence of human creativity in all of the presentations that we've had and in all of the people here. Just the variety of it and the range of it. The second is that it's put us in a place where we have no idea what's going to happen, in terms of the future. No idea how this may play out.

I have an