I myself did a bit of work with a nice young Danish physicist by the name of Kalchar. The work concerned the rotational states of hydrogen and I have no great reason to tell you about its detail, only to tell you the story how we reported about it to Bohr. No- Bohr wanted to hear what we are doing- Let's talk about it in a seminar. We were there, Bohr wasn't. Postponed it. Postponed it again. Well, I already told you that sometimes I slept late and in one of those occasions I came to Bohr's institute early in the afternoon and there was my collaborator, Kalchar, reporting on our article. That was all right with me. But Bohr, for whatever reason, wanted me to talk. Kalchar was talking in bro- in broken German, he was a Dane. And Bohr said- Ah, here is Teller. It would be very much better if we would hear about that in English. Will Teller continue now? Well, the joke of the point is that while I did talk English, I have never before that given any talk in English. So my first talk in English was delivered on a paper with Kalchar, about orto- and para-hydrogen, in English. I survived it; so did the rest of the audience.