“History, geography and future bind us. Let no one separate us. Together, we can create pillars of mutual respect that will support the common good for generations to come.”

First Journal of Travel (1840)

remarks (2 May 1956) at a Caltech YMCA lunch forum http://calteches.library.caltech.edu/49/2/Religion.htm
Context: Western civilization, it seems to me, stands by two great heritages. One is the scientific spirit of adventure — the adventure into the unknown, an unknown which must be recognized as being unknown in order to be explored; the demand that the unanswerable mysteries of the universe remain unanswered; the attitude that all is uncertain; to summarize it — the humility of the intellect. The other great heritage is Christian ethics — the basis of action on love, the brotherhood of all men, the value of the individual — the humility of the spirit.
These two heritages are logically, thoroughly consistent. But logic is not all; one needs one's heart to follow an idea. If people are going back to religion, what are they going back to? Is the modern church a place to give comfort to a man who doubts God — more, one who disbelieves in God? Is the modern church a place to give comfort and encouragement to the value of such doubts? So far, have we not drawn strength and comfort to maintain the one or the other of these consistent heritages in a way which attacks the values of the other? Is this unavoidable? How can we draw inspiration to support these two pillars of western civilization so that they may stand together in full vigor, mutually unafraid? Is this not the central problem of our time?

Napoleon the Little (1852), Conclusion, Part Second, II
Napoleon the Little (1852)

Address to the European Parliament (2015)
Context: There are those living in Europe today who remember the ravages that struck the continent in the late 1930s and the World War that followed because of an aggressive, expansionist ideology based on hate and disregard for the very essence of humanity. Europe’s war became the World’s War. Today, we are fighting a similar war. A war against an expansionist ideology that feeds on hate; that is committing murder in the name of God and religion to justify evil actions that no religion tolerates — a war against terrorists who disrespect Islam’s values and humanity’s values.
Our victory now depends on our unity. Europe’s role is vital. Only by cooperation can our regions shut down the sources of terrorist support and defeat their purposes.
It is also essential that our regions renew the source of our great strength: the mutual respect that binds and sustains us. Young people, especially, must be inspired by values that reject violence, create peace and build inclusive society.

Speech following the Minnesota primary (3 June 2008) http://www.cnn.com/2008/POLITICS/06/03/obama.speech/index.html
2008

Address to the Canadian Parliament (17 May 1961)
1961

2013, Second Inaugural Address (January 2013)

Opening address to the Education Summit, Suva, 31 August 2005

Sketchbook 1946-1949