When we follow this line of thought, it becomes clear that our first vision of a world-wide net of fine roads, great steady trains on renewed and broader tracks, long distance aeroplane flights of the securest sort, splendid and beautiful towns, a parklike countryside, studded with delightful homes, was merely the scene and frame for a population of well-grown, well-trained, fully adult human beings. All the world will be accessible to them, mountains to climb, deserts to be alone in, tropics to explore in wonder, beautiful places for rest. And they will be healthy, and happy in the way that only health makes possible. For surely it is no news to any one that a score of horrible tints and diseases that weaken and cripple us, a number of infections, a multitude of ill-nourished and under-nourished states of body, can be completely controlled and banished from life, they and all the misery they entail—given only a common effort, given only human co-operation instead of discussion. The largest visible material harvest of peace is the least harvest of peace. The great harvest will be health and human vigor. And happiness! Think of the mornings that will some day come, when men will wake to read in the papers of something better than the great 5–5–3 wrangle, of the starvation and disorder of half the world, of the stupid sexual crimes and greedy dishonesties committed by the adults with the undeveloped intelligence of vicious children, of suggestions of horrible plots and designs against our threadbare security, of the dreary necessity for “preparedness.” Think of a morning when the newspaper has mainly _good_ news, of things discovered, of fine things done; think of the common day of a common citizen in a world where debt is no longer a universal burthen, where there is constant progress and no retrogression, where it is the normal thing to walk out of a beautiful house into a clean and splendid street, to pass and meet happy and interesting adults instead of aged children obsessed by neglected spites and jealousies and mean anxieties, to go to some honorable occupation that helps the world forward to a still greater and finer life. You may say that a world may be prosperous and men and women healthy and free and yet there will still be spites and jealousies and all the bitterness of disputation, but that is no more true than that there will still be toothache. A mind educated and cared for, quite as well as a body, can be healed and kept clean and sweet and free from these maddening humiliations and suppressions that now fester in so many souls. There is no real necessity about either physical or mental miserableness in human life. Given, that is, a sufficient release of human energy to bring a proper care within the reach of all. And consider the quality of interest in such a world. Think of the mental quality of a world in which each day the thought and research of a great host of intelligences