"It is hard to put this profound book into a category. Despite the author's criticisms of Thoreau, it is more like Walden than any other book I have read. . . . The book makes great strides toward bringing the best insights from medieval philosophy and from contemporary environmental ethics together. Anyone interested in both of these areas must read this book."--Daniel A. Dombrowski, The Thomist "Those who share Koh k's concern...