It is an acquisition, the fruit not of a single effort, but of a series of efforts terminating in fixed habits . . . It is the combined result or compound product of the understanding, conscience, and affections as displayed in all the actions of our lives towards God and man, things temporal and eternal, celestial and terrestrial. Along this same line of individual responsibility he stressed that morality demands that one do good, and not merely that he restrain from doing evil. Both Jefferson and Campbell believed that morality consisted very largely of doing good works. Campbell certainly stressed Christian morality more than Jefferson, pointing out that one's heart must be pure before God, which is realized only when man yields his will to God, still he saw no virtue in a man that professed Christianity whose life was not a blessing to the world.
Morality is thus something to be learned.
He saw love as the fulfillment of the whole law of morality. The shortest and most effectual way to cultivate all moral excellence is to cultivate love. A man will be good to the man that he loves. Love does no ill to its neighbor. To cultivate love one must involve himself with mankind, suffering with those that suffer and rejoicing with those that rejoice.