Eber M. Pettit, Sketches in the History of the Underground Railroad (1879)
“ The Underground Railroad, it will be seen, has done much the greatest work in behalf of human liberty. The conductors on this route were some of the noblest, self sacrificing men the world ever saw. No civil penalties dismayed them. They boldly proclaimed by deeds of moral heroism and self-sacrifice their faith in the higher law, before which human statutes were impotent when human liberty was at stake. ”
