Einstein::Speech in Newyork(Dec 1945)

Physicists find themselves in a position not unlike that of Alfred Nobel. Alfred Nobel invented an explosive more powerful than any then known-an exceedingly effective means of destruction. To atone for this 'accomplishment' and to relieve his conscience, he instituted his awards for the promotion of peace.
Today, the physicists who participated in producing the most formidable weapon of all time are harassed by a similar feeling of responsibility, not to say guilt. As scientists, we must never cease to warn against the danger created by these weapons; we dare not slacken in our efforts to make the peoples of the world, and especially their governments, aware of the unspeakable disaster they are certain to provoke unless they change their attitude toward one another and recognize their responsibility in shaping a safe future. We helped create this new weapon in order to prevent the enemies of mankind from achieving it first; given the mentality of the Nazis, this could have brought about untold destruction as well as the enslavement of the peoples of the world.

This weapon was delivered into the hands of the American and the British nations in their roles as trustees of all mankind, and as fighters for peace and liberty; but so far we have no guarantee of peace nor of any of the freedoms promised by the Atlantic Charter. The war is won, but the peace is not.