E.O. Wilson is the Pellegrino University Research Professor Emeritus in Entomology at Harvard University and a Humanist Laureate of the International Academy of Humanism. An author of many books, he has won the Pulitzer Prize on two occasions, for the books On Human Nature (Harvard, 1978) and The Ants (with Bert Holldobler, Harvard 1991). This article is excerpted from E.O. Wilson’s The Creation: An Appeal to Save Life on Earth (©2006 W.W. Norton & Company, Inc.).