Slavery naturally tends to destroy all sense of justice and equity. It puffs up the mind with pride: teaches youth a habit of looking down upon their fellow creatures with contempt, esteeming them as dogs or devils, and imagining themselves beings of superior dignity and importance, to whom all are indebted. This banishes the idea, and unqualifies the mind for the practice of common justice.
David Rice (1812). “A Kentucky Protest Against Slavery: Slavery Inconsistent with Justice and Good Policy, Proved by a Speech, Delivered in the Convention, Held at Danville, Kentucky”, p.7