“When factory farmers tell us that animals kept in 'intensive' (i. e. concentration) camps are being kindly spared the inclemency of a winter outdoors, and that calves do not mind being tethered for life on slats because they have never known anything else, an echo should start in our historical consciousness: do you remember how the childlike blackamoors were kindly spared the harsh responsibilities of freedom, how the skivvy didn't feel the hardship of scrubbing all day because she was used to it, how the poor didn't mind their slums because they had never known anything else?”

Source: The Rights of Animals (1965), p. 17