Every plausible policy must be followed by the question 'And then what?'

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

Fundamentalists are panicked by the apparent disintegration of the family, the disappearance of certainty and the decay of morality. Fear leads them to ask, if we cannot trust the Bible, what can we trust?

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

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

Using the commons as a cesspool does not harm the general public under frontier conditions, because there is no public, the same behavior in a metropolis is unbearable.

You cannot do only one thing.