" It didn’t matter who liked whom, or on what side a man might find himself, because they were all on the side of a world of very definite finite resources, and they would all suffer terrifying consequences if they drained to bare bones the world that had conceived the life of the human race, fostered and nurtured that life, which now threatened to contaminate and destroy— "

― Alan Shepard , Moon Shot: The Inside Story of America's Race to the Moon