sus·tain·abil·i·ty noun
1: capability of being sustained; 2a: of, relating to, or being a method of harvesting or using a resource so that the resource is not depleted or permanently damaged <sustainable techniques> <sustainable agriculture> b: of or relating to a lifestyle involving the use of sustainable methods <sustainable society>
circa 1727 Merriam-Webster
“We do not need to invent sustainable human communities. We can learn from societies that have lived sustainably for centuries. We can also model communities after nature’s ecosystems, which are sustainable communities of plants, animals, and microorganisms. Since the outstanding characteristic of the biosphere is its inherent ability to sustain life, a sustainable human community must be designed in such a manner that its technologies and social institutions honor, support, and cooperate with nature’s inherent ability to sustain life.
The processes and patterns by which ecosystems sustain themselves have evolved over billions of years. Designing human communities that are compatible with nature’s processes requires basic ecological knowledge, which is one of the key components of ecological literacy.” —Fritjof Capra
“Sustainability is an economic state where the demands placed upon the environment by people and commerce can be met without reducing the capacity of the environment to provide for future generations. It can also be expressed in the simple terms of an economic golden rule for the restorative economy: leave the world better than you found it, take no more than you need, try not to harm life of the environment, make amends if you do.” —Paul Hawken
“To the Okanagan people, as to all peoples practicing bioregional self-sufficient economies, the realization that the total community must be engaged in order to attain sustainability comes as a result of surviving together for thousands of years. The practical aspects of willing teamwork within a whole-community system clearly emerged from having to cooperate in order to survive.” —Okanagan Wisdom Keeper Jeannette Armstrong
"What sustains us" - read Notes on Living Green: An Ecology of Life Blog