What Did the Founders Say Was Necessary?
A second search was conducted, using a modified question--"How dependent is good citizenship on morality?" This new search returned an unexpected result of its own. Seven of the nine substantive sources came not from political philosophy but from U.S. immigration law, where "good moral character" is an actual, enforceable requirement for naturalization, verified over a multi-year statutory period before citizenship is ever granted (USCIS, 2026). It is a striking discovery in its own right: the law demands proof of character at the door to citizenship, while the culture, judging by our first search, mostly stops asking about it once a person is already inside.
The founders did not share that silence. Claremont McKenna professor Charles Kesler put the underlying conviction plainly: to reclaim our destiny as citizens, "we need to rediscover the generation that really can claim to be the best and the brightest in American history, at least from the moral and political point of view: the founders of the American Republic” (Smith, et al, 2005). George Washington, in his 1796 Farewell Address, called religion and morality "indispensable supports" of political prosperity, warning that "national morality" cannot be expected to prevail apart from religious principle (Smith, et al, 2005).
Benjamin Rush, a signer of the Declaration, made the same point about the unfinished work of the Revolution itself: political independence, he wrote in 1787, was only "the great drama" closing--the harder task remaining was to "prepare the principles, morals, and manners of our citizens" for the government they had just won (Kesler, 1991). The Northwest Ordinance, passed under the Articles of Confederation and re-passed by the First Congress under the Constitution, put the same conviction into actual law: "Religion, Morality, and knowledge being necessary to good government and the happiness of mankind..." (Kesler, 1991).
Theodore Roosevelt addressed this same issue when he wrote in 1895: “[E]very great nation owes to the men whose lives have formed part of its greatness not merely the material effect of what they did, not merely the laws they placed upon the statute books or the victories they won over armed foes, but also the immense but indefinable moral influence produced by their deeds and words themselves upon the national character” (Kesler, 1991). A republic cannot outsource the moral formation of its citizens to its laws alone.