Let us examine our attitude toward peace itself. Too many of us think it is impossible. Too many think it unreal. But that is a dangerous, defeatist belief. It leads to the conclusion that war is inevitable, that mankind is doomed, that we are gripped by forces we cannot control. We need not accept that view. Our problems are manmade; therefore they can be solved by man. And man can be as big as be wants. No problem of human destiny is beyond human beings.

But I think the American people expect more from us than cries of indignation and attack. The times are too grave, the challenge too urgent, and the stakes too high to permit the customary passions of political debate. We are not here to curse the darkness, but to light the candle that can guide us through that darkness to a safe and sane future. As Winston Churchill said on taking office some twenty years ago: if we open a quarrel between the present and the past, we shall be in danger of losing the future.

To exclude from positions of trust and command all those below the age of 44 would have kept Jefferson from writing the Declaration of Independence, Washington from commanding the Continental Army, Madison from fathering the Constitution, Hamilton from serving as secretary of the treasury, Clay from being elected speaker of the House and Christopher Columbus from discovering America.

Let both sides explore what problems unite us instead of belaboring those problems which divide us.

We go into space because whatever mankind must undertake, free men must fully share.

Now, as never before, hundreds of millions of men and women-who had formerly believed that stoic resignation in the face of hunger and disease and darkness was the best one could could do-have come alive with a new sense that the means are at hand with which to make for themselves a better life.

The supreme reality of our time is the vulnerability of our planet.