The Yellowstone Park is something absolutely unique in the world, so far as I know. This park was created and is now administered for the benefit and enjoyment of the people. The scheme of its preservation is noteworthy in its essential democracy. The only way that the people as a whole can secure to themselves and their children the enjoyment in perpetuity of what the Yellowstone Park has to give is by assuming the ownership in the name of the nation and by jealously safeguarding and preserving the scenery, the forests, and the wild creatures.

Theodore Roosavelt at laying of cornerstone of gateway to Yellowstone national park, 1903