"So the real question, I believe, is not whether some ARA's use violence. The real question is whether they are justified in doing so. Here are the main outlines of a possible justification. 1. Animals are innocent. 2. Violence is used only when it is necessary to rescue them so that they are spared terrible harms. 3. Excessive violence is never used. 4. Violence is used only after nonviolent alternatives have been exhausted, as time and circumstances permit. 5. Therefore, in these cases, the use of violence is justified."

“The task facing ARAs is daunting: we must empty the cages, not make them larger.”

“What I had learned about human rights proved to be directly relevant to my thinking about animal rights. Whether any animals have rights depends on the true answer to one question: Are any animals subjects-of-a-life? This is the question that needs to be asked about animals because this is the question we need to ask about us.”

“Finally, and lamentably, one thing seems certain. Unless the massive amount of violence done to animals is acknowledged by those who do it, and until meaningful steps are taken to end it, as certain as night follows day, some ARAs, somewhere, somehow, will use violence against animal abusers themselves to defend the rights of animals.”

“People like me, people who believe in animal rights, feel the same way about eagles and elephants, pigs and porpoises, as most people feel about cats and dogs. Don't get me wrong. Animal Rights Advocates don't want pigs sleeping in our beds or elephants riding in our cars. We don't want to make “pets” of these animals. What we want is something simpler: we just want people to stop doing terrible things to them.”

“I would never have become an animal rights advocate if I had not first been a human rights advocate, especially for those humans who lack the understanding or power to assert their rights for themselves.”

“From my reading of Gandhi I had learned how some people in India regard eating cow as unspeakably repulsive. I realized I felt the same way about cats and dogs: I could never eat them. Were cows so different from cats and dogs that there were two moral standards, one that applies to cows, another that applies to cats and dogs? Were pigs so different? Were any of the animals I ate so different?”