In Reason for Hope: A Spiritual Journey (2000), primatologist Jane Goodall explains how appreciation for the sacred value of nature aids science and supports hope for the future of the natural world.[fn][[nid:673]][/fn]
John Muir (1838-1914) was a naturalist devoted to preserving wilderness areas in the United States against human development. He believed that knowledge of the environment required not only a scientific perspective, but also a moral and spiritual outlook.[fn][[nid:672]][/fn]
Nigel Dudley et al., Beyond Belief: Linking Faiths and Protected Areas to Support Biodiversity Conservation, The Arguments for Protection Series, (Gland, Switzerland: World Wildlife Fund for Nature, 2005), p. 5].