It is easy to take liberty for granted, when you have never had it taken from you. ~Author unknown 
Where liberty dwells, there is my country. ~Benjamin Franklin
Freedom is never free. ~Author Unknown
My God! How little do my countrymen know what precious blessings they are in possession of, and which no other people on earth enjoy! ~Thomas Jefferson
And I'm proud to be an American, where at least I know I'm free. And I won't forget the men who died, who gave that right to me. ~Lee Greenwood