“I think the subject which will be of most importance politically is mass psychology. . . . Various results will soon be arrived at: that the influence of home is obstructive. . . . Although this science will be diligently studied, it will be rigidly confined to the governing class. The populace will not be allowed to know how its convictions were generated. When the technique has been perfected, every government that has been in charge of education for a generation will be able to control its subjects securely without the need of armies or policemen. . . . Educational propaganda, with government help, could achieve this result in a generation. There are, however, two powerful forces opposed to such a policy: one is religion; the other is nationalism. . . . A scientific world society cannot be stable unless there is a world government.”