In a few parks in Shanghai, I came upon several groups of people practicing tai chi, wushu, and other elegant martial arts-type exercises. It was beautiful and quiet and sort of fierce all at once. My favorite person to watch was the young woman in the first few pictures taking instruction from an older, white-headed wushu teacher. And that is because she was patient, skillful, cool-headed, and graceful--all while wearing bright-red Chuck Taylors.