In order for the world to become more peaceful, people must become more peaceful. Among mature people war would not be a problem -- it would be impossible. In their immaturity people want, at the same time, peace and the things which make war. However, people can mature just as children grow up. It always comes back to the thing so many of us wish to avoid: working to improve ourselves.
(Peace Pilgrim, a woman who walked across the United States for twenty-eight years, starting in 1953 during the Korean War, to promote peace).
(photo courtesy of pixabay.com)