“Your race had shown a notable incapacity for dealing with the problems of its own rather small planet. When we arrived, you were on the point of destroying yourselves with the powers that science had rashly given you. Without our intervention, the Earth today would be a radioactive wilderness. “Now you have a world at peace, and a united race. Soon you will be sufficiently civilized to run your planet without our assistance. Perhaps you could eventually handle the problems of an entire solar system—say fifty moons and planets. But do you really imagine that you could ever cope with this?”