John Richards

“If possessing a higher degree of intelligence does not entitle one human to use another for his or her own ends, how can it entitle humans to exploit non-humans?”
― Peter Singer, Animal Liberation

“We think of lions and wolves as savage because they kill; but they must kill, or starve. Humans kill other animals for sport, to satisfy their curiosity, to beautify their bodies, and to please their palates.”
― Peter Singer, Animal Liberation: The Definitive Classic of the Animal Movement

“The plucked and dressed bodies of the chickens will then be sold to millions of families who will gnaw on their bones without pausing for an instant to think that they are eating the dead body of a once living creature, or to ask what was done to that creature in order to enable them to buy and eat its body.”
― Peter Singer, Animal Liberation

“I would not question the sincerity of vegetarians who take little interest in Animal Liberation because they give priority to other causes; but when nonvegetarians say that "human problems come first" I cannot help wondering what exactly it is that they are doing for human beings that compels them to continue to support the wasteful, ruthless exploitation of farm animals.”
― Peter Singer, Animal Liberation