When I think about the world I would like to leave to my daughter and the grandchildren I hope to have, it is a world that moves away from unequal, unstable, unsustainable interdependence to integrated communities - locally, nationally and globally - that share the characteristics of all successful communities.
— William J. Clinton

If you believe that health care is a public good to be guaranteed by the state, then a single-payer system is the next best alternative. Unfortunately, it is fiscally unsustainable without rationing.
Charles Krauthammer unsustainable quote

We have a government that borrows $4 billion a day. We have a government that owes trillions of dollars in debt, half of that to foreigners, most of that to Chinese investors. I don't - that is extreme. Not only is it extreme. It's insane and it's unsustainable.
— Marco Rubio

The reality is that a consumer culture which chucks out its iPhones for a new version every nine months is completely unsustainable, because Earth has already reached the tipping point. 'The General Strike' attempts to personalize these issues and encourage listeners to look for a new model.
— Justin Sane

An environment of infinite economic expansion is unsustainable in a world of finite resources.
— unsustainable quotation by Bryant H. McGill