where we stumble is where our treasure lies. For many introverts like David, adolescence is the great stumbling place, the dark and tangled thicket of low self-esteem and social unease. In middle and high school, the main currency is vivacity and gregariousness; attributes like depth and sensitivity don't count for much. But many introverts succeed in composing life stories much like David's: our Charlie Brown moments are the price we have to pay to bang our drums happily through the decades.