This book's discourse about harmony and sustainable development. The three dimensions of sustainability relate to social, economic and environmental aspects. These aspects affect our daily lives and activities, and they are factors that we depend on and influence our progress and development. The choice and direction of human society, economic and environmental development is our common thinking from two reference points. These two reference points come from our original intention and ultimate concerns. Human collective thought, knowledge, and cultural behaviour are passed down from generation to generation. The motivations for sustainable development are based on three actions: one is find meaning of works and do something meaningful, second is felling passion or in love, and the third is hope for a better tomorrow. The five main points of harmony and sustainable development are, first the pursuit of sustainable development has a long history in human civilisation. It's in harmonious coexistence with our inner peace of mind and motivation. Second, the sustainable development of the world requires a sense of compassion, share happiness with goodwill and social inclusion. Third, sustainability in the midst of natural order and environmental chaos requires materiality prioritisation of natural resources security, risks and ecological value. Fourth, economic growth and prosperity shared by all are determinants of sustainability of civilisation, good global governance and sustainability performance. Fifth, the ultimate concerns on sustainability of mankind requires concerted global action to establish net future values and long-term strategies. Lastly, The exploration of sustainable development requires to implement together with core principles of openness, integrity, accuracy, balance, clarity, reliability and timeliness. By combining the five key points of harmony and sustainable development and the core principles can established with the circle of sustainability model for long-term strategies and action plans.