The Importance of Respecting Other Animals

I think we should get much more respect to other animals, particularly animals with big brains. For me the dividing line is when the brain begins to develop in the embryo. The newborn infant can't suffer. So this is the whole trick, the unborn human beings, the answer to human beings. It's a total of two million, has absolutely no meaning. We're fine fumigating a building full of sentient rats but not bombing a village full of sentient people.