They also quote from the underappreciated Calvin Coolidge's speech on the occasion of Independence Day.
Here's a sample:
On an occasion like this a great temptation exists to present evidence of the practical success of our form of democratic republic at home and the ever-broadening acceptance it is securing abroad. Although these things are well known, their frequent consideration is an encouragement and an inspiration. But it is not results and effects so much as sources and causes that I believe it is even more necessary constantly to contemplate. Ours is a government of the people. It represents their will. Its officers may sometimes go astray, but that is not a reason for criticizing the principles of our institutions. The real heart of the American Government depends upon the heart of the people. It is from that source that we must look for all genuine reform. It is to that cause that we must ascribe all our results.A wise man, old Cal.
It was in the contemplation of these truths that the fathers made their declaration and adopted their Constitution. It was to establish a free government, which must not be permitted to degenerate into the unrestrained authority of a mere majority or the unbridled weight of a mere influential few. They undertook the balance these interests against each other and provide the three separate independent branches, the executive, the legislative, and the judicial departments of the Government, with checks against each other in order that neither one might encroach upon the other. These are our guaranties of liberty. As a result of these methods enterprise has been duly protected from confiscation, the people have been free from oppression, and there has been an ever-broadening and deepening of the humanities of life.
Under a system of popular government there will always be those who will seek for political preferment by clamoring for reform. While there is very little of this which is not sincere, there is a large portion that is not well informed. In my opinion very little of just criticism can attach to the theories and principles of our institutions. There is far more danger of harm than there is hope of good in any radical changes. We do need a better understanding and comprehension of them and a better knowledge of the foundations of government in general.
For some patriotic songs, go here and here. For more on Silent Cal, try this.
And be sure to eat some solid food.
UPDATE: Here's the Concord Hymn, by Longfellow:
Sung at the Completion of the
Battle Monument, July 4, 1837
By the rude bridge that arched the flood,
Their flag to April's breeze unfurled,
Here once the embattled farmers stood,
And fired the shot heard round the world.
The foe long since in silence slept,
Alike the Conqueror silent sleeps,
And Time the ruined bridge has swept
Down the dark stream which seaward creeps.
On this green bank, by this soft stream,
We set to-day a votive stone,
That memory may their deed redeem,
When like our sires our sons are gone.
Spirit, that made those heroes dare
To die, or leave their children free,
Bid Time and Nature gently spare
The shaft we raise to them and Thee.