We dedicate this book to
Louise, Celia, Bonnie, and Linda—

whose support is abundant,
whose love is nourishing,
and whose patience is just shy of infinite.

And to our children

Christine, Rebecca, Taylor, Scott,
Aislinn, Cara, Seth, Samuel, Hyrum,
Amber, Megan, Chase, Hayley, Bryn,
Amber, Laura, Becca, Rachael, Benjamin,
Meridith, Lindsey, Kelley, Todd,
who have been a wonderful source of learning.