Soon after the birth of my son Charlie*, who has Down syndrome, a visitor asked whether he was “mild, moderate, or severe”—referring to his level of cognitive impairment. I knew the terminology, but the question shocked me. In my arms I held my beautiful baby boy, who defied easy categorization. Clinical labels may describe some aspects of an individual’s “functioning,” but they don’t tell the whole story. Labels could not describe how Charlie’s smile lit up a room or how the sweetness of his soul had captured our hearts so completely.