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Acknowledgments
ose considering this book for their own courses should know that we owe a large
debt of gratitude to our students who suered through preliminary drafts of chap-
ters and countless lectures based on the ideas that became the chapters that follow.
e comments and reactions received from our students helped to improve every
part of this book. We also benetted from countless conversations with friends
and colleagues, and a special debt of gratitude is owed to Professor Rodney Fort
who, too often, was forced to listen to our arguments, points, and perspectives.
Individually or together, we also benetted from ideas and discussions ...