"[An] act of the Congress of the United States... which assumes powers... not delegated by the Constitution, is not law, but is altogether void and of no force."

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It is important that the remaining scenic areas of the country be at once made into State or National Parks. Fortunately there still are a number of these wild places, but it will require effort to save them. Each Park proposed will have powerful and insidious opposition. The insidious opposition to National Parks will say, ‘There is a feeling in Congress that we should not have any more National Parks at this time’; or, ‘We should wait until present ones are improved.’

— Enos Mills