On the Wilson School’s Scudder Plaza, sculptor James Fitzgerald’s Fountain of Freedom looms over Robertson Hall and Ai Weiwei’s installation, “Circle of Animals/Zodiac Heads,” the subject of a letter on page 8. (Photo by Charles R. Plohn)

On the Wilson School’s Scudder Plaza, sculptor James Fitzgerald’s Fountain of Freedom looms over Robertson Hall and Ai Weiwei’s installation, “Circle of Animals/Zodiac Heads,” the subject of a letter on page 8. (Photo by Charles R. Plohn)