Incommensurables cannot be compared.

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

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

Ruin is the destination toward which all men rush, each pursuing his own best interest in a society that believes in the freedom of the commons.

Why are ecologists and environmentalists so feared and hated? This is because in part what they have to say is new to the general public, and the new is always alarming.

It takes five years for a willing person's mind to change. Have patience with yourself and others when treading in an area protected by a taboo.

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