At my age, 85, I'm at age where I can look back and derive some conclusions about my actions. My rule has been try to learn, try to understand what happened. Develop the lessons and pass them on.

There are many ways to make the death rate increase.

Brains are like hearts - they go where they are appreciated.

The indefinite combination of human fallibility and nuclear weapons will lead to the destruction of nations.

Short of nuclear war itself, population growth is the gravest issue the world faces. If we do not act, the problem will be solved by famine, riots, insurrection and war.

The commitment of government to deal with the population issue is of course essential....There are many ways to make the death rate increase.

Action should be founded on contemplation, and those of us who act don't put enough time, don't give enough emphasis, to contemplation.