The only valid test of leadership is the ability to lead, and lead vigorously.

Let us never negotiate out of fear. But let us never fear to negotiate.

There are those who regard this history of past strife and exile as better forgotten. But, to use the phrase of Yeats, let us not casually reduce "that great past to a trouble of fools." For we need not feel the bitterness of the past to discover its meaning for the present and the future.

So let us here resolve that Dag Hammarskjold did not live, or die, in vain. Let us call a truce to terror. Let us invoke the blessings of peace. And, as we build an international capacity to keep peace, let us join in dismantling the national capacity to wage war.

We cannot expect that everyone, to use the phrase of a decade ago, will talk sense to the American people. But we can hope that fewer people will listen to nonsense. And the notion that this Nation is headed for defeat through deficit, or that strength is but a matter of slogans, is nothing but just plain nonsense.

Geography has made us neighbors. History has made us friends. Economics has made us partners, and necessity has made us allies. Those whom God has so joined together, let no man put asunder.

I hear it said that West Berlin is militarily untenable - and so was Bastogne, and so, in fact, was Stalingrad. Any danger spot is tenable if men - brave men - will make it so.