Original: «Statesmen, my dear Sir, may plan and speculate for Liberty, but it is Religion and Morality alone, which can establish the Principles upon which Freedom can securely stand. The only foundation of a free Constitution is pure Virtue, and if this cannot be inspired into our People in a greater Measure than they have it now, They may change their Rulers and the forms of Government, but they will not obtain a lasting Liberty. They will only exchange Tyrants and Tyrannies».
Fuente: Adams, John. The Works of John Adams Vol. 9: Letters and State Papers 1799 - 1811. Editorial Jazzybee Verlag, 2015. ISBN 9783849648251.
Fuente: Carta a Zabdiel Adams, 21 de junio de 1776.