Well, how can you celebrate if somebody makes a discovery, unless you do set off a rocket. And you light the rocket, you put it on the floor, and it goes down the corridor, spewing out smoke and all the secretaries come to their door and see this smoke laden hallway, and go back inside. And the rocket gets all the way down the end of the hall, goes off with a bang. And you've really celebrated your friend's discovery. And I keep a rocket in my office, even now, in hopes that somebody will come in and tell me about some discovery. What will it take to set off that rocket, what kind of discovery? Well, I always liked those words of the philosopher of science; the importance of a discovery is proportional to the surprise it causes. So, I'm ready for any surprise.