"The most essential component to offering the children an education for peace is the emphasis on that which unites us." With this focus, Elizabeth Henke presents a picture of how Montessori students progressively develop a sense of moral, civic, and social responsibility. The foundation is set during the elementary years when children gain an understanding of the interconnectedness of all life and the commonalities between all people through Cosmic Education. The morality developed in elementary is refined during adolescence and is aided by coursework that is focused on current ethical issues and opportunities to participate in their school, local, and global communities. As they begin to place themselves into the world by thinking of themselves as citizens of their community and components of culture, their work for the betterment of that world gains relevance. [This talk was presented at the NAMTA Adolescent Workshop at the AMI/ USA Refresher Course, February 17-20, 2017 in Austin, TX.]