We are not just rather like animals; we are animals. Our difference from other species may be striking, but comparisons with them have always been, a… - Mary Midgley

The symbolism of meat-eating is never neutral. To himself, the meat-eater seems to be eating life. To the vegetarian, he seems to be eating death. There is a kind of gestalt-shift between the two positions which makes it hard to change, and hard to raise questions on the matter at all without becoming embattled.

But understanding and explaining motives does not compromise freedom; nor does even predicting acts necessarily do so. A person committed to a political cause may vote predictably, and intelligibly in an election. He does not vote less freely than someone that flips a coin at the last minute. So if we find comparison with animals any help in understanding motives, it will not mean that conduct is not free. And since animals are not (as Descartes supposed) automata, the issue of freedom does not make comparing man with any other species and downgrading irrelevance.

Neither ecological nor social engineering will lead us to a conflict-free, simple path . . . Utilitarians and others who simply advise us to be happy are unhelpful, because we almost always have to make a choice either between different kinds of happiness--different things to be happy _about_--or between these and other things we want, which nothing to do with happiness.