" With every step forward we become more sure what the disorder is not: it is not willful misbehaving, it is not a moral failing, it is not a lack of trying nor an inability to take an interest in the world. Neurobiological data now show that the syndrome is rooted in the central nervous system. "

― Edward M. Hallowell , Driven to Distraction: Recognizing and Coping with Attention Deficit Disorder from Childhood Through Adulthood