I still believe that peace and plenty and happiness can be worked out some way. I am a fool.

What kind of peace do we seek? Not a Pax Americana enforced on the world by American weapons of war. Not the peace of the grave or the security of the slave. I am talking about genuine peace, the kind of peace that makes life on earth worth living, the kind that enables men and nations to grow and to hope and to build a better life for their children — not merely peace for Americans but peace for all men and women — not merely peace in our time but peace for all time. Address at The American University, Washington D.C. (10 June 1963)

The United States, as the world knows, will never start a war. We do not want a war. We do not now expect a war. This generation of Americans has already had enough — more than enough — of war and hate and oppression. We shall be prepared if others wish it. We shall be alert to try to stop it. But we shall also do our part to build a world of peace where the weak are safe and the strong are just. We are not helpless before that task or hopeless of its success. Address at The American University, Washington D.C. (10 June 1963)

This is a novel somewhat in the telegraphic schizophrenic manner of tales of the planet Tralfamadore, where the flying saucers come from. Peace.

And is not peace, in the last analysis, basically a matter of human rights — the right to live out our lives without fear of devastation — the right to breathe air as nature provided it — the right of future generations to a healthy existence? Address at The American University, Washington D.C. (10 June 1963)

I speak of peace, therefore, as the necessary rational end of rational men. I realize that the pursuit of peace is not as dramatic as the pursuit of war — and frequently the words of the pursuer fall on deaf ears. But we have no more urgent task. Address at The American University, Washington D.C. (10 June 1963)

If we cannot end now our differences, at least we can make the world safe for diversity. For, in the final analysis, our most basic common link is that we all inhabit this small planet. We all breathe the same air. We all cherish our children's future. And we are all mortal. Address at The American University, Washington D.C. (10 June 1963)

The path we have chosen for the present is full of hazards, as all paths are; but it is one of the most consistent with our character and our courage as a nation and our commitments around the world. The cost of freedom is always high — but Americans have always paid it. And one path we shall never choose, and this is the path of surrender or submission. Our goal is not victory of might but the vindication of right — not peace at the expense of freedom, but both peace and freedom, here in this hemisphere and, we hope, around the world. God willing, that goal will be achieved. Thank you, and good night. Cuban Missile Crisis speech (22 October 1962)

At present the peace of the world has been preserved, not by statesmen, but by capitalists Letter to Mrs. Sarah Brydges Willyams (1863-10-17)

It is an unfortunate fact that we can secure peace only by preparing to war.

To secure these ends, America's weapons are nonprovocative, carefully controlled, designed to deter and capable of selective use. Our military forces are committed to peace and disciplined in self-restraint. Our diplomats are instructed to avoid unnecessary irritants and purely rhetorical hostility. Address at The American University, Washington D.C. (10 June 1963)