"Once on the surface [after the landing] and realizing the moment was at hand, fortunately I had some hours to think about it after getting there. My own view was that it was a very simplistic statement: what can you say when you step off of something? Well, something about a step. It just sort of evolved during that period that I was doing the procedures of the practice takeoff and the EVA prep and all the other activities that were on our flight schedule at that time. I didn't think it was particularly important, but other people obviously did."