I begin with observing, what all indeed will understand, that the likeness to God, of which I propose to speak, belongs to man's higher or spiritual nature. It has its foundation in the original and essential capacities of the mind. In proportion as these are unfolded by right and vigorous exertion, it is extended and brightened. In proportion as these lie dormant, it is obscured. In proportion as they are perverted and overpowered by the appetites and passions, it is blotted out. In truth, moral evil, if unresisted and habitual, may so blight and lay waste these capacities, that the image of God in man may seem to be wholly destroyed.

"Likeness to God", an address in Providence, Rhode Island (1828)