On our hike yesterday with four 8/9-year-old boys, a couple of things occurred to us. One was that 9 seems to be the absolute perfect age to be a boy. Coming into your physical and imaginative powers, yet with none of the baggage that attends the teen years. It also occurred to us that not one of these kids had been born when Sept. 11 happened. Maybe ages of innocence pass for some of us, but then get rebooted in our kids.