It's a maudlin, trivial nostrum invented by an Italian barber for Columbus day in something like 1904, not the dying words of Jefferson. I'd sooner cite the Pledge of Allegiance to Good Pasta and Abundant Tomato Sauce.

I pledge allegiance to this Sauce,
And the Pasta on which it stands;
And to the restaurant in which it's served,
One entree, courtesy of Gino,
With parmesan and fresh bread for All.