Of course, a positive growth rate might be taken as evidence that a population is below its optimum.

The population problem has no technical solution; it requires a fundamental extension in morality.

We can't cure a shortage by increasing the supply.

Ecology is the overall science of which economics is a minor speciality.

People are the quintessential element in all technology... Once we recognize the inescapable human nexus of all technology our attitude toward the reliability problem is fundamentally changed.

The three filters [against folly] operate through these particular questions: Literacy: What are the words? Numeracy: What are the numbers? Ecolacy: And then what?

Economists (and others) who are satisfied with nature-free equations develop a dangerous hubris about the potency of our species