Keller asks the big questions and surveys answers with remarkable detail. Here is an insightful analysis of contemporary, classical, and ancient thought, alike in the ecological sciences, the humanities, and economics, the roots and fruits of our concepts of nature and of being in the world. Keller is unexcelled in bridging the is/ought gap, bridging nature and culture, and in celebrating the richness of life, its pattern, process, and creativity on our wonderland Earth.
Holmes Rolston, III
University Distinguished Professor, Colorado State University
Author of A New Environmental Ethics: The Next Millennium for Life on Earth (2012)
Mentored by renowned ecologist Frank Golley and renowned philosopher Frederick Ferré, David Keller is well prepared to provide a deep history and a sweeping synthesis of the "idea of ecology"—including the metaphysical, epistemological, and ethical aspects of that idea, as well as the scientific.
J. Baird Callicott
University Distinguished Research Professor, University of North Texas
Author of Thinking Like a Planet: The Land Ethic and the Earth Ethic (2013)
David R. Keller is deceased. He was Professor of Philosophy, University Professor of Environmental Studies, and Director Emeritus of the Center for the Study of Ethics at Utah Valley University.