Build a world of lasting peace, universal security, common prosperity, openness, tolerance, cleanliness and beauty. Building a community of human destiny is the principle and theory of governing the country put forward by the General Secretary when he delivered an important speech at the General Debate of the 70th United Nations General Assembly in new york on September 20 15. Building a community of human destiny means building a world of lasting peace, universal security, common prosperity, openness, tolerance, cleanliness and beauty. This declaration embodies China's basic ideas on international relations and the future of mankind in the face of the current world situation and various challenges facing mankind.