No one should be able to enter a wilderness by mechanical means.

Freedom in a commons brings ruin to all.

It is a mistake to think that we can control the breeding of mankind in the long run by an appeal to conscience.

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.

People are the quintessential element in all technology... Once we recognize the inescapable human nexus of all technology our attitude toward the reliability problem is fundamentally changed.

The essence of dramatic tragedy is not unhappiness. It resides in the solemnity of the remorseless working of things.

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.