Edward O. Wilson is the founder of Sociobiology and is widely regarded to be the world's most famous living scientist. Recently, Wilson seized the word "consilience" from deep within the history of science and reintroduced it into our language by emblazoning it across the cover of his latest best-seller, Consilience: The Unity of Knowledge. In this book, Wilson offers to unify the "two cultures" of literature and science for once and forever, as "the way to renew the crumbling structure of the liberal arts" (12). It is an offer many of my colleagues find attractive, for Wilson carries enormous authority both as a natural scientist and as an eloquent speaker for the environmentally appealing concepts of "biophilia" and "biodiversity." He has well-nigh captured the Thoreau Society: for example, in June 1998 he joined Bill and Hillary Clinton as a featured guest at the opening of the Thoreau Institute, delivering a brief address which has been reprinted as the Preface to the Thoreau Society's collection of Thoreau's writings on science, which I edited and entitled Material Faith.