In his autobiography, Theodore Parker relates that as a child, four or five years old, living on a farm in Roxbury, he was walking through the fields one day absent-mindedly swinging a stick through the tall grass. This was many years ago, in the days before the Civil War. It was summertime. He...

I want to tell you a story about being new—and how sometimes it’s fun and sometimes it isn’t. Once there was a second grader named Paul. In September, he moved to a new town, had a new teacher and a new class and a brand-new desk. There was a boy sitting across from him with bright red hair,...