But those who are incapable ofpitying animals are, as a matter of fact, incapable of pitying men.A physician who would cut a living rabbit in pieces -- laying barethe nerves, denuding them with knives, pulling them out withforceps -- would not hesitate to try experiments with men and womenfor the gratification of his curiosity.
Robert G. Ingersoll
animal-rights, compassion, vivisection