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.

In the specific case of abortion, the matter is particularly easy in that no woman wants a late abortion. Once abortion was made legal, the age of the aborted fetus went down. The slope slipped in the other direction. If we legalize RU-486 and other similar new drugs, the age will fall to one week or less and start approaching zero. The slippery slope will slide in the other direction. The only reason we have late abortions is because we make early abortion difficult.

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

An attack on values is inevitably seen as an act of subversion.

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

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

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