In the eleven years that separated the Declaration of the Independence of the United States from the completion of that act in the ordination of our written Constitution, the great minds of America were bent upon the study of the principles of government that were essential to the preservation of the liberties which had been won at great cost and with heroic labors and sacrifices. Their studies were conducted in view of the imperfections that experience had developed in the government of the Confederation, and they were, therefore, practical and thorough.

When the Constitution was thus perfected and established, a new form of government was created, but it was neither speculative nor experimental as to the principles on which it was based. If they were true principles, as they were, the government founded upon them was destined to a life and an influence that would continue while the liberties it was intended to preserve should be valued by the human family. Those liberties had been wrung from reluctant monarchs in many contests, in many countries, and were grouped into creeds and established in ordinances sealed with blood, in many great struggles of the people. They were not new to the people. They were consecrated theories, but no government had been previously established for the great purpose of their preservation and enforcement. That which was experimental in our plan of government was the question whether democratic rule could be so organized and conducted that it would not degenerate into license and result in the tyranny of absolutism, without saving to the people the power so often found necessary of repressing or destroying their enemy, when he was found in the person of a single despot.

In the future of the Republic, we must encounter many difficult and dangerous situations, but the principles established in the Constitution and the check upon hasty or inconsiderate legislation, and upon executive action, and the supreme arbitration of the courts, will be found sufficient for the safety of personal rights and for the safety of the government, and the prophetic outlook of M. De Tocqueville will be fully realized through the influence of Democracy in America.
M. De Tocqueville will be fully realized.  Each succeeding generation of Americans will find in the pure and impartial reflections of De Tocqueville a new source of pride in our institutions of government, and sound reasons for patriotic effort to preserve them and to inculcate their teachings. They have mastered the power of monarchical rule in the American Hemisphere, freeing religion from all shackles, and will spread, by a quiet but resistless influence, through the islands of the seas to other lands, where the appeals of De Tocqueville for human rights and liberties have already inspired the souls of the people.

From the introduction