Langston Hughes wrote a short but powerful http://books.google.com/books?id=7JDHPmklV-IC&pg=PA52&dq=Hold+fast+to+dr...
life liberty and the pursuit of happiness
We set aside a national holiday to honor Dr. Martin Luther King Jr. because he welded an ethos of agape love onto the founding principles of the United States.
We hold these truths to be self-evident that all men are created equal.
The Declaration of Independence says: