[Plymouth Rock] has become an object of veneration in the United States. I have seen bits of it carefully preserved in several towns of the Union. Does not this sufficiently show how all human power and greatness are entirely in the soul? Here is a stone which the feet of a few poor fugitives pressed for an instant, and this stone becomes famous; it is treasured by a great nation, a fragment is prized as a relic. But what has become of the doorsteps of a thousand palaces? Who troubles himself about them?

—Alexis de Tocqueville, Democracy in America