—– The sustainable society is one that lives within the self-perpetuating limits of its environment. That society is not a “no growth” society. It is rather, a society that recognizes the limits of growth [and] looks for alternative ways of growing. (Coomer, 1979)

—– Sustainable development – development that is likely to achieve lasting satisfaction of human needs and improvement of the quality of human life. (Allen, 1980)

—– Sustainable development is development that meets the needs of the present generation without compromising the ability of future generations to meet their own needs. (Brundtland Commission, 1987)

—– Sustainable development – economic development that can continue indefinitely because it is based on the exploitation of renewable resources and causes insufficient environmental damage for this to pose an eventual limit. (Allaby, 1988)

—– The basic idea [of sustainable development] is simple in the context of natural resources (excluding exhaustibles) and environments: the use made of these inputs to the development process should be sustainable through time. If we now apply the idea to resources, sustainability ought to mean that a given stock of resources – trees, soil quality, water, and so on – should not decline. (Markandya and Pearce, 1988)

—– The indefinite survival of the human species (with a quality of life beyond mere biological survival) through the maintenance of basic life support systems (air, water, land, biota) and the existence of infrastructure and institutions which distribute and protect the components of these systems. (Liverman et al., 1988)

——– The sustainable development concept constitutes a further elaboration of the close links between economic activity and the conservation of environmental resources. It implies a partnership between the environment and the economy, within which a key element is the legacy of environmental resources that is not “unduly” diminished. (OECD, 1990)

—– Sustainable development: The amount of consumption that can be sustained indefinitely without degrading capital stocks, including natural capital stocks. (Costanza and Wainger, 1991)

—– Sustainable development means improving the quality of life of humans, while living within the carrying capacity of supporting ecosystems. (IUCN, UNEP, WWF, 1991)

—– Sustainable development means basing developmental and environmental policies on a comparison of costs and benefits and on careful economic analysis that will strengthen environmental protection and lead to rising and sustainable levels of welfare. (World Bank, 1992)

—– Sustainable development means adjusting economic growth to remain within bounds set by natural replenishable systems, subject to the scope for human ingenuity and adaptation via careful husbanding of critical resources and technological advance, coupled to the redistribution of resources and power in a manner that guarantees adequate conditions of liveability for all present and future generations. (O’Riordan and Yaeger, 1994)

—– A sustainable society implicitly connotes one that is based on a long-term vision in that it must foresee the consequences of its diverse activities to ensure that they do not break the cycles of renewal; it has to be a society of conservation and generational concern. It must avoid the adoption of mutually irreconcilable objectives. Equally, it must be a society of social justice because great disparities of wealth or privilege will breed destructive disharmony. (Hossain, 1995)