Abstract
This article discusses the definition of slavery as a status in society and a relation to an owner. an imaginary case in which utilitarian arguments could justify slavery. this case, just because it is highly unlikely to occur in the actual world, does not provide an argument against utilitarianism. if it did occur, slavery would be justified in this case, but that is no reason for abandoning our intuitive principle condemning slavery. the adoption of this principle has in the actual world a good utilitarian justification. slavery is wrong because in the world of men as they are it will almost always cause misery