My favorite lines of Buber:
Through authentic relationships with our fellow men and women, we come to know the eternal Thou -- God.
He believes that truth, meaning, and redemption are found in solidarity with other people.
"All real living is meeting (11)."
"If you hallow this life you meet the living God (79)"
"He who loves a woman, and brings her life to present realization in his, is able to look in the Thou of her eyes into a beam of the eternal Thou (86)."
Below are the links that I encountered:
http://www.youtube.com/watch?v=3pOWHMX3Ujs
http://www.rjgeib.com/barich/papers/martin-buber.html
http://www.angelfire.com/md2/timewarp/buber.html