“I think that in all descriptions of the good life here on earth we must assume a certain basis of animal vitality and animal instinct; without this, life becomes tame and uninteresting. Civilization should be something added to this, not substituted for it; the ascetic saint and the detached sage fail in this respect to be complete human beings. A small number of them may enrich a community; but a world composed of them would die of boredom.”

“And people who believe in God think God has put human beings on earth because they think human beings are the best animal, but human beings are just an animal and they will evolve into another animal, and that animal will be cleverer and it will put human beings into a zoo, like we put chimpanzees and gorillas into a zoo. Or human beings will all catch a disease and die out or they will make too much pollution and kill themselves, and then there will only be insects in the world and they will be the best animal.”

“The basis of all animal rights should be the Golden Rule: we should treat them as we would wish them to treat us, were any other species in our dominant position”

“Man...is a tame or civilized animal; never the less, he requires proper instruction and a fortunate nature, and then of all animals he becomes the most divine and most civilized; but if he be insufficiently or ill- educated he is the most savage of earthly creatures.”

“I think using animals for food is an ethical thing to do, but we've got to do it right. We've got to give those animals a decent life and we've got to give them a painless death. We owe the animal respect.”

“One particularly poor argument in defence of eating meat is that if humans did not eat animals, those animals would not have been brought into existence in the first place. Humans would simply not have bred them in the numbers they do breed them. The claim is that although these animals are killed, this cost to them is outweighed by the benefit to them of having been brought into existence. This is an appalling argument for many reasons. First, the lives of many of these animals are so bad that even if one rejected my argument one would still have to think that they were harmed by being brought into existence. Secondly, those who advance this argument fail to see that it could apply as readily to human babies that are produced only to be eaten. Here we see quite clearly that being brought into existence only to be killed for food is no benefit. It is only because killing animals is thought to be acceptable that the argument is thought to have any force.”