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.1
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.1
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Source: http://en.wikipedia.org/wiki/John_Muir