To Robert A. Moe

who gave me his trust, guidance, and support,

and a unique opportunity

to develop a career

in an environment rich

in thought, technology, and mission.

To Wilma Wakefield Allen, deceased,

who thought that being published

was one of life’s noblest achievements;

to Eugene Richard Allen,

who is a model of the honest American entrepreneur;

and to my family, Mary Ann, Christopher, and Emily,

who continue to find strength in me

every time I see nothing.

I love you all.