John Carroll vs. J. Howard Moore

John Howard Moore was an American zoologist, philosopher, educator, and social reformer. He is best known for his advocacy of ethical vegetarianism and his pioneering role in the animal rights movement, both informed by his ethical interpretation of Darwin's theory of evolution. Moore's most influential work, The Universal Kinship (1906), outlined a sentientist philosophy he termed the doctrine of Universal Kinship, arguing that ethical regard for animals—rooted in the Golden Rule—is essential to human moral progress. He urged the extension of moral concern to all sentient beings, based on their shared evolutionary and psychological continuity with humans.