The god who is reputed to have created fleas to keep dogs from moping over their situation must also have created fundamentalists to keep rationalists from getting flabby. Let us be duly thankful for out blessings.

We can't cure a shortage by increasing the supply.

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

A finite world can support only a finite population; therefore, population growth must eventually equal zero.

There is nothing more dangerous than a shallow thinking compassionate person

In a finite world this means that the per capita share of the world's goods must steadily decrease.

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.