I've always agreed with Alexander Hamilton's view on the Bill of Rights...which is to say that it's a travesty. Hamilton argued, correctly I think, that making a Bill of Rights indicates things not listed in the Bill of Rights aren't guaranteed rights. He was right, we now source only the right guaranteed to us by legislation, instead of possessing all rights, except those denied by specific legislation.
I think all liberties are essential, because each liberty has specific meaning to the individual, if not the rest of the world.