The President's News Conference
06/12/1945
https://www.presidency.ucsb.edu...
By virtue of the authority vested in me by the Constitute and laws of the United States, and particularly by Title 1 of the First War Powers...
The welfare of the United States in the next 25 or 30 years is going to be in your hands--the hands of the young men who are now growing up ...
I have been studying it ever since I was your age, and I don't think a finer system has ever been created in the history of the world.
It will continue to work just as long as you want it to work.