When creating a new republic, the Foundings Fathers deemed it necessary to become well versed in the lessons of history, in order to avoid the fates of previous republics. Above all other historical corollaries, Americans evoked the example of the republican Rome that had upheld a system of government that aspired to ordered liberty as supported by a mixture of public civic virtue and effective institutional design for nearly five centuries. The comparisons were possible because the American colonies had kept the grammar school system of education then common in England, giving all educated Americans a basic grasp of Cicero’s reputation and writings, who represented eloquence, moral virtue and hostility towards tyranny. He thus became a source of inspiration for the Founders, and John Adams directly considered himself an American Cicero. In the article, the authors try to answer the question about the legitimacy of such a position of the 2nd President of the US. To do this, they compare the basic political categories of Cicero and Adams, pointing out their similarities and differences. They also examine to what extent Cicero’s thought could be applied to the reality of the young American republic.