'What is the point, Elizabeth?' says Norma. 'What is the point of the story?'

'Just that Gandhi's vegetarianism can hardly be conceived as the exercise of power. It condemned him to the margins of society. It was his particular genius to incorporate what he found on those margins into his political philosophy.'

'In any event,' interjects the blond man, 'Gandhi is not a good example. His vegetarianism was hardly committed. He was a vegetarian because of the promise he made to his mother. He may have kept his promise, but he regretted and resented it.'

'Don't you think that mothers can have a good influence on their children?' says Elizabeth Costello.

There is a moment's silence. It is time for him, the good son, to speak. He does not.

'But your own vegetarianism, Mrs Costello,' says President Garrard, pouring oil on troubled waters: 'it comes out of moral conviction, does it not?'

'No, I don't think so,' says his mother. 'It comes out of a desire to save my soul.'

Now there truly is a silence, broken only by the clink of plates as the waitresses set baked Alaskas before them.

'Well, I have a great respect for it,' says Garrard. 'As a way of life.'

'I'm wearing leather shoes,' says his mother. 'I'm carrying a leather purse. I wouldn't have overmuch respect if I were you.'

'Consistency' murmurs Garrard. 'Consistency is the hobgoblin of small minds. Surely one can draw a distinction between eating meat and wearing leather.'

'Degrees of obscenity' she replies.

'I too have the greatest respect for codes based on respect for life,' says Dean Arendt, entering the debate for the first time. 'I am prepared to accept that dietary taboos do not have to be mere customs. I will accept that underlying them are genuine moral concerns. But at the same time one must say that our whole superstructure of concern and belief is a closed book to animals themselves. You can't explain to a steer that its life is going to be spared, any more than you can explain to a bug that you are not going to step on it. In the lives of animals, things, good or bad, just happen. So vegetarianism is a very odd transaction, when you come to think of it, with the beneficiaries unaware that they are being benefited. And with no hope of ever becoming aware. Because they live in a vacuum of consciousness.'

Arendt pauses. It is his mother's turn to speak, but she merely looks confused, grey and tired and confused. He leans across. 'It's been a long day, Mother,' he says. 'Perhaps it is time.'

'Yes, it is time,' she says.

'You won't have coffee?' enquires President Garrard.

'No, it will just keep me awake.' She turns to Arendt. 'That is a good point you raise. No consciousness that we would recognize as consciousness. No awareness, as far as we can make out, of a self with a history. What I mind is what tends to come next. They have no consciousness therefore. Therefore what? Therefore we are free to use them for our own ends? Therefore we are free to kill them? Why? What is so special about the form of consciousness we recognize that makes killing a bearer of it a crime while killing an animal goes unpunished? There are moments -'

'To say nothing of babies,' interjects Wunderlich. Everyone turns and looks at him. 'Babies have no self-consciousness, yet we think it a more heinous crime to kill a baby than an adult.'

'Therefore?' says Arendt.

'Therefore all this discussion of consciousness and whether animals have it is just a smokescreen. At bottom we protect our own kind. Thumbs up to human babies, thumbs down to veal calves. Don't you think so, Mrs Costello?'

'I don't know what I think,' says Elizabeth Costello. 'I often wonder what thinking is, what understanding is. Do we really understand the universe better than animals do? Understanding a thing often looks to me like playing with one of those Rubik cubes. Once you have made all the little bricks snap into place, hey presto, you understand. It makes sense if you live inside a Rubik cube, but if you don't…'

There is a silence. 'I would have thought -' says Norma; but at this point he gets to his feet, and to his relief Norma stops.

The president rises, and then everyone else. 'A wonderful lecture, Mrs Costello,' says the president. 'Much food for thought. We look forward to tomorrow's offering.'