There is no such thing as general morality; there is no such thing even as Christian morality. For instance, Christianity says you must not kill, but nobody takes this seriously. Many moralities have been built on the basis of killing. For instance, as I said in the first lecture, in some countries it is considered a most immoral thing to refuse blood revenge. And why in one case can a man kill and in another not?

• morality
• christianity
• revenge