Incommensurables Cannot Be Compared.

Ecological Differentiation Is The Necessary Condition For Coexistence.

Value Is A Relative Concept: The Value Of Each Action Is Determined By Comparing It With Other Possible Actions.

A Finite World Can Support Only A Finite Population; Therefore, Population Growth Must Eventually Equal Zero.

The Three Filters [against Folly] Operate Through These Particular Questions: Literacy: What Are The Words? Numeracy: What Are The Numbers? Ecolacy: And Then What?

We Can't Cure A Shortage By Increasing The Supply.