I am currently reading Profiles in Courage by John F. Kennedy and just want to highlight one paragraph.
"In a speech he gave the summer after the Cuban Missile Crisis, President Kennedy spoke of peace:
'Let us not be blind to our differences - but let us also direct attention to our common interests and to the means by which those differences can be resolved. And if we cannot end our differences, at least we can help make the world safe for diversity. For, in the final analysis, our most 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."