Feynman: I actually did the work on the paper. Weiner: That s right. It wasn’t a record of what you had done but it is the work. Feynman: It’s the doing it — it’s the scrap paper. Weiner: Well, the work was done in your head but the record of it is still here. Feynman: No, it’s not a record, not really, it’s working. You have to work on paper and this is the paper. OK?