"Indeed, we may regard it as an axiom, that the knowledge which is anywhere possessed of the art of healing, is the measure of the refinement and civilization to which the people have attained. Man is civilized by virtue of social relations; and refinement is the becoming divested from grossness, vulgarity, and the evil manners which are characteristic and incident to a living for one's self alone. Selfishness is savagery; and a state of society in which self-interest is the ruling element is hardly yet reclaimed from the state of barbarism. It is of little avail to appeal to skill in mechanics, engineering, and other attainments in the plane of material evolution. These are not adequate proof of spiritual advancement. Kindly sentiment toward others, sincere regard for their welfare, charity in will and act, make the only real culture and civilization. The art and technique of healing proceed from these qualities, and cannot flourish apart from them."