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

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

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

A coldly rationalist individualist can deny that he has any obligation to make sacrifices for the future.

The only kind of coercion I recommend is mutual coercion, mutually agreed upon by the majority of the people affected.

Indeed, our particular concept of private property, which deters us from exhausting the positive resources of the earth, favors pollution.

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