I often think that if at the age of 10 months I had possessed the kind of rational power I use today, I would never have learned to walk. I would have tried it out a few times, but after discovering that I could fall backward, forward, on my side and on my face, I would have come to the conclusion that I was destined to be a sitter — perhaps a crawler, but certainly not a walker. That two-legged stuff was for those more athletic — perhaps longer-legged — than I.