A good leader sets the right goals, gets things moving, and helps us to discover that we already know what to do.

Any system, biological, economic, or social, that gets so encrusted that it cannot self-evolve, a system that systematically scorns experimentation and wipes out the raw material of innovation, is doomed over the long term on this highly variable planet.

The sustainability revolution will be organic. It will arise from the visions, insights, experiments and actions of billions of people. The burden of making it happen is not on the shoulders of any one person or group. No one will get the credit, but everyone can contribute.

Everyone except the far right wing of the Republican Party realizes that oil, gas and coal burning are the main activities that have sent the climate into bigger floods, droughts, hurricanes, and El Ninos

The European nations take climate change very seriously.

The grand jury's job is not to weigh the evidence from both sides; it is only to decide whether there is enough evidence on one side to bring a person to trial.

The scarcest resource is not oil, metals, clean air, capital, labour, or technology. It is our willingness to listen to each other and learn from each other and to seek the truth rather than seek to be right