Gratitude is the virtue of wise and generous minds. Ingratitude is the fault of fools and clowns. La Rochefoucauld, Réflexions ou sentences et maximes morales, (1665, 1678), maxims 688 and 689. By: Redactor Carl Menger Mikhail Bakunin Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website 5 − one = Notify me of follow-up comments by email. Notify me of new posts by email.