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.

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

Society does not need more children; but it does need more loved children. Quite literally, we cannot afford unloved children - but we pay heavily for them every day. There should not be the slightest communal concern when a woman elects to destroy the life of her thousandth-of-an-ounce embryo. But all society should rise up in alarm when it hears that a baby that is not wanted is about to be born.

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

Economists (and others) who are satisfied with nature-free equations develop a dangerous hubris about the potency of our species

The social arrangements that produce responsibility are arrangements that create coercion, of some sort.

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