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

The rational man finds that his share of the cost of the wastes he discharges into the commons is less than the cost of purifying his wastes before releasing them.

You cannot do only one thing.

The Universal Declaration of Human Rights describes the family as the natural and fundamental unit of society. It follows that any choice and decision with regard to the size of the family must irrevocably rest with the family itself, and cannot be made by anyone else.

Never globalize a problem if it can possibly be dealt with locally.

A technical solution may be defined as one that requires a change only in the techniques of the natural sciences, demanding little or nothing in the way of change in human values or ideas of morality.

Throughout history, human exploitation of the earth has produced this progression: colonize-destroy-move on.