Seven-generation sustainability is the tenet that all decisions should be made with consideration for the effect they will have on the next seven generations to follow us.

Development of this concept is attributed to a precept of the Great Law of the Haudenosaunee (Six Nations Iroquois Confederacy), which requires that chiefs consider the impact of their decisions on the seventh generation, although it has been adopted by modern groups. This book on REALNEO explores seven generation planning for NEO, in complete respect for all generations before us and seven generations ahead.