"I like to define ecology as ‘the web of life’ or ‘the interconnectedness of all things.’"

"The most alarming of all man's assaults upon the environment is the contamination of air, earth, rivers, and sea with dangerous and even lethal materials."

"The more we learn about the complexities of life, the more we realize how little we know."

"It is a wholesome and necessary thing for us to turn again to the earth and in the contemplation of her beauties to know the sense of wonder and humility."

"The beauty of the living world I was trying to save has always been uppermost in my mind—that, and anger at the heedless and needless destruction of that beauty."