The treatment of the Earth by man the exploiter is not only imprudent, it is sacrilegious. We are unlikely to correct our hideous mistakes in this realm unless we recover the mystical sense of our oneness with nature. Many people think this is fantastic. I think it is fundamental to our sanity. --
Nature, Man, and God (1934) by Anglican Archbishop William Temple. See his biography in Wikipedia. For other quotations see Malik Imran Awan's 2009 blog post 11 Great Green Minds.