Risk-taking is the essence of innovation.

In 1960 I published a book that attempted to direct attention to the possibility of a thermonuclear war, to ways of reducing the likelihood of such a war, and to methods for coping with the consequences should war occur despite our efforts to avoid it.

Human and moral factors must always be considered. They must never be missing from policies and from public discussion.

For some years I have spent my time on exactly these questions - both in thinking about ways to prevent war, and in thinking about how to fight, survive, and terminate a war, should it occur.

World War I broke out largely because of an arms race, and World War II because of the lack of an arms race.

The widespread diffusion of nuclear weapons would make many nations able, and in some cases also create the pressure, to aggravate an on-going crisis, or even touch off a war between two other powers for purposes of their own.

Anything that reduces war-related destruction should not be considered altogether immoral.