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

The greatest folly is to accept expert statements uncritically. At the very least, we should always seek another opinion.

The optimum population is, then, less than the maximum.

In a competitive world of limited resources, total freedom of individual action is intolerable

No one should be able to enter a wilderness by mechanical means.

In an approximate way, the logic of commons has been understood for a long time, perhaps since the discovery of agriculture or the invention of private property in real estate.

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