Animal liberation is human liberation.
We recognize our kinship with all feeling things. They were not made for humans any more than black people were made for whites, or women created for men. The smugness with which man could do with other species as he pleased exemplified the most extreme racist theories, the principle that might is right. The greatness of a nation and its moral progress can be judged by the way its animals are treated. Until he extends his circle of compassion to all living things, man will not himself find peace.