On Nuclear Warfare

Today, the physicists who participate in watching the most formidable and dangerous weapon of all time...cannot desist from warning and warning again: we cannot and should not slacken in our efforts to make the nations of the world and especially their governments aware of the unspeakable disaster they are certain to provoke unless they change their attitude towards each other and towards the task of shaping the future. We helped in creating this new weapon in order to prevent the enemies of mankind from achieving it ahead of us. Which, given the mentality of the Nazis, would have meant inconceivable destruction, and the enslavement of the rest of the world...

On Social Equality

Large parts of the world are faced with starvation, while others are living in abundance. The nations were promised liberation and justice, but we have witnessed and are witnessing, even now, the sad spectacle of liberating armies firing into populations who want their independence and social equality, and supporting in those countries by force of arms, such parties and personalities as appear to be most suited to serve vested interests. Territorial questions and arguments of power, obsolete though they are, still prevail over the essential demands of common welfare and justice.