Throughout this site there are quotations from famous people speaking about animal rights, vegetarianism and related topics. I selected them from a large number of quotations found over the net; here you'll find them, grouped by topic.
Quotations about animal rights in general.
Quotations about vegetarianism in general.
About relation between vegetarianism and your health.
About relation between vegetarianism and world hunger.
Quotations about vivisection.
Quotations about hunting.
Famous people speaking about furs.
Animals in entertainment: circuses zoos and other prisons.
Quotations about activism in general, of course apply very well to animal rights.