He expressed his creed just before his death in the often-quoted letter to Ezra Stiles.[i-489] Bearing in mind his inveterate scientific deism, we are not surprised that his religion is one created apart from Christian scripture, that Jesus is the conventional, amiable philosopher, respected but not worshipped by the Enlightenment. If he seems convinced in this letter that God "governs" the universe "by his Providence," we have seen above that his attitude toward the Deity's relation to man and his world was anything but sure and free from disturbing reflection. Convinced that the Deity "ought to be worshipped," he next observed "that the most acceptable service we render to him is doing good to his other children." His a priori concept of a benevolent Deity whose goodness is expressed in the harmony of the creation, in effect challenged him to attempt to approximate this kindness in his relations with his fellow men. Apart from provoking humanitarianism, primarily an ethical experience guided not by sentimentality but by reason and practicality. Franklin's natural religion--like deism in general--failed, as scriptural religion does not, to establish a union between theology, the religious life, and ethical behavior. It must be seen that Franklin had no confidence in achieving the good life through mere fellow-service: he continually urged man to conquer passion through reason, seeming to covet pagan sobriety more than he did the satisfaction of having aided man to achieve greater physical ease. If he felt that "to relieve the misfortunes of our fellow creatures is concurring with the Deity; it is godlike,"[i-490] he warned against helping those who had failed to help themselves, implying that the inner growth of the individual is more significant than his outward charity to others. Whatever be the ultimate resolution of these antithetic principles, we see that his humanitarianism was the offspring of his a priori conceived Deity, augmented by his experiments in science which led to discovery of nature's laws. His emphasis on the inward and vertical growth of the individual toward perfection, on the other hand, may be viewed as the expression of the introspective force of his Puritan heritage and his knowledge, direct and indirect, of classical literature. As in the polarity of his thoughts concerning Providence, so here we see that the _modus operandi_ of his mind is explicable in terms of the interplay of the old and the new, Greek paganism (Socratic self-knowledge) and Christianity and the rationale of the Enlightenment.