 Finally, the function of reason, he says in his 1787 letter to Carr, is “in some degree” to oversee the exercise of the moral faculty, “but it is a small stock which is required for this”. Reason might function, thinks one scholar, (1) to encourage or reinforce morally correct  action,[18]  (2) to keep the moral sense vital and vigorous, (3) to instill the first elements of morality in children through exposure to history, (4) to allow for cultural sensitivity to morally retarded cultures, (5) to continue moral advance through reading history as adults, (6) to help make plain the rights (especially derivative rights) of humans, (7) to form general rules to serve as rough guides human  action,[19]  and (8) to encourage moral improvement through breeding for morality (Holowchak 2014b, 177–80). None of those functions, however, directly involves reason in moral “judgments.”