"When a young person, even a gifted one, grows up without proximate living examples of what she may aspire to become--whether lawyer, scientist, artist, or leader in any realm--her goal remains abstract. Such models as appear in books or on the news, however inspiring or revered, are ultimately too remote to be real, let alone influential. But a role model in the flesh provides more than inspiration; his or her very existence is confirmation of possibilities one may have every reason to doubt, saying, 'Yes, someone like me can do this."