The meeting ended a few hours before the Northeast Regional left 30th Street Station so I had enough time to stroll from my West Philly hotel, down Chestnut to 34th, then Spruce, then across the Schuylkill to the walk that runs beside it.

It was Friday afternoon, sun had broken through the clouds, and the temperature was about 70. I joined the baby-stroller-joggers, cyclists, skateboarders and others heading north along the river.

I almost went to the Barnes Museum — one of the Philadelphia’s new premier attractions — but I like to think that in walking we get a glimpse of the true city, the one that exists beneath the attractions.

There were glimpses of skyline with tall grasses in the foreground, there was the sun striking the water; there were all the people and conversations. There was, above all, the joy of moving through space, a space new to me, thrilling in its unknowns.