Biodiversity can't be maintained by protecting a few species in a zoo, or by preserving greenbelts or national parks. To function properly, nature needs more room than that. It can maintain itself, however, without human expense, without zookeepers, park rangers, foresters or gene banks. All it needs is to be left alone.

A vision should be judged by the clarity of its values, not the clarity of its implementation path [in Mediated Modeling page 43]

A knowledgeable and courageous U.S. president could help enormously in leading the world's nations toward saving the climate.

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

There are no separate systems. The world is a continuum. Where to draw a boundary around a system depends on the purpose of the discussion.

Eleventh Commandment: Thou shalt not distort, delay, or sequester information

A grand jury hears only one side - that of the prosecutor