Sustainability: Definitions

Here are some definitions of sustainability:

Sustainability is equity over time ... think of it
as extending the golden rule through time .. Do unto future
generations as you would have them do unto you.
Robert Gilman,
Context Institute

Sustainable development is economic growth that
will benefit present and future generations without detrimentally
affecting the resources or biological systems of the planet.
President's Council on Sustainable Development

Sustainable development is development that
meets the needs of the present without compromising the ability
of future generations to meet their own needs.
WCED "Our Common Future"
(The Brundtland Report)

Sustainability is a new way of thinking about an age-old
concern: ensuring that our children and grandchildren inherit a
tomorrow that is at least as good as today, preferably better. We
want to make sure that the way we live our lives is sustainable -
that it can continue and keep improving for a long, long time.
Sustainable Seattle