It can best be done by teaching children to play and work at the same time, so that when they are grown-up work and play will continue to be the same. All that one does with pleasure is done well and produces a good effect. Doing depends upon the attitude of mind. When the mind is not in a good state, whatever be the work, however interesting, it will not be well done. To bring about peace and order in the world it is very necessary that all work should be made pleasant, and that all pleasure should be turned into work, so that in taking pleasure no work is lost and there is pleasure in working. The central theme in the education of children should be the occupying of every moment of their life in doing quite willingly something which is pleasurable and at the same time useful. Life is a great opportunity, and no moment of life should be lost.