Sustainable development means using our unlimited mental and creative resources, not our limited natural resources. If this is true, as I believe it to be, then we need to develop more constructive ways to unleash these phenomenal mental and creative resources, and quickly. Currently, around the globe we waste human potential as wantonly and comprehensively as we lay waste to our environmental potential, and this is no surprise, as both actions are directly related. We need to understand that while there is growing human inequality, there will never be environmental quality.
We need to redouble our efforts toward flourishing: developing the capabilities and potential in all humans in order to live productively in a convivial manner within environmental limits. Failure to do so will end our ability to approach anything near the just and sustainable futures we are fully capable of.