The complacent, the self-indulgent, the soft societies are about to be swept away with the debris of history. Only the strong, only the industrious, only the determined, only the courageous, only the visionary who determine the real nature of our struggle can possibly survive.

We in this country, in this generation, areby destiny rather than choicethe watchmen on the walls of world freedom. We ask, therefore, that we may be worthy of our power and responsibility, that we may exercise our strength with wisdom and restraint, and that we may achieve in our time and for all time the ancient vision of peace on earth, good will toward men. That must always be our goal, and the righteousness of our cause must always underlie our strength. For as was written long ago: except the Lord keep the city, the watchman waketh but in vain.

In a time of turbulence and change, it is more true than ever that knowledge is power.

Malthus argued a century and a half ago that man, by using up all his available resources, would forever press on the limits of subsistence, thus condemning humanity to an indefinite future of misery and poverty. We can now begin to hope and, I believe, know that Malthus was expressing not a law of nature, but merely the limitation then of scientific and social wisdom. The truth or falsity of his prediction will depend now, with the tools we have, on our own actions, now and in the years to come.

For to save mankind's future freedom, we must face up to any risk that is necessary. We will always seek peace - but we will never surrender.

There has also been a change - a slippage - in our intellectual and moral strength. Seven lean years of drouth and famine have withered a field of ideas.

Peaceful circulation has been interupted by barbed wire and concrete blocks. For a city or a people to be truly free, they must have the secure right, without economic, political or police pressure, to make their own choices and live their own lives.