"The worst malformation is never so anomalous as not to hear the general character of animal life, etc. Even an individual organ never departs from its normal character so completely that amid even the greatest disfigurement, this character should not be cognizable."
So often the enslaver and the slaveholding community may preserve some features of the normal human character, notwithstanding the "disfigurement" produced.
"The excessive development of one part determines the imperfect and retarded development of another, and the converse."
So the oligarchic development retards the growth and advancement of the laboring classes, whether the hue be white or black: it prevents or retards the culture and civilization of individuals and communities.
"Various and manifold as are the forms of monstrosity, some of them recur with such uniformity of type as to constitute a regular series."
History shows that various as are the other social monstrosities, domestic slavery always recurred with a filial uniformity of type.
"The genesis of malformation in the human body is still veiled in much obscurity despite some progress made in science."
Social teratology, or the science of monstrosities, easily traces the origin and genesis of domestic slavery.