"If we want to be among those who consciously influence the circumstances out of which a new world is being born, we need to act not in isolation but together." (1947)

"The present situation of the world shows worrying aspects. Many people go hungry while immense riches are there as never before… But there is also a very positive aspect:  humankind is increasingly united thanks to the means of communication. For the first time people feel like citizens of the world. What we must work for is a sincere brotherly/sisterly dialogue with all people of good will." (1966)