I do not share the extreme vegetarian view that food reform is the foundation of other reforms, for I think it can be shown that all cruelties to animals, whether inflicted in the interests of the dinner-table, the laboratory, the hunting-field, or any other institution, are the outcome of one and the same error—the blindness which can see no unity and kinship, but only difference and division, between the human and the non-human race. This blindness it is—this crass denial of a common origin, a common nature, a common structure, and common pleasures and pains—that has alone hardened men in all ages of the world, civilized or barbarous, to inflict such fiendish outrages on their harmless fellow-beings; and to remove this blindness we need, it seems to me, a deeper and more radical remedy than the reform of sport, or of physiological methods, or even of diet alone. The only real cure for the evil is the growing sense that the lower animals are closely akin to us, and have Rights.
(Henry S. Salt, The Logic of Vegetarianism: Essays and Dialogues [London: The Ideal Publishing Union, 1899], 109-10 [italics in original])