The method of reckless and uncontrolled private use and waste has done for us all the good it ever can; and it is time to put an end to it before it does all the evil it easily may. We have passed the time when heedless waste and destruction … are longer permissible. Henceforth we must seek national efliciency by a new and better way, by the way of the orderly development and use, coupled with the preservation, of our natural resources, by making the most of what we have for the benefit of all of us, instead of leaving the sources of material prosperity open to indiscriminate exploitation. These are some of the reasons why it is wise that we should abandon the old point of view, and why Conservation has become a great moral issue in becoming a patriotic duty.

– Theodore Roosevelt, “Natural Resources” (1910). In The New Nationalism, p. 79.