“[T]hink about something like the raging debate about abortion. People get very, very hot under the collar about killing a tiny, few celled embryo because it’s human. Whereas this tiny, little human embryo is far less capable of feeling pain, of feeling fear, of feeling hurt certainly than an adult pig or cow. And there’s virtually no difference between a human embryo and a cow embryo or a pig embryo.”

— Richard Dawkins, interview and Q&A in Greece (April 26, 2015)