The old morality, which told us that selling the body is incompatible with giving the self, touched on a truth. Sexual feeling is not a sensation that can be turned on and off at will: it is a tribute from one self to another and—at its height— an incandescent revelation of what you are. To treat it as a commodity, that can be bought and sold like any other, is to damage both present self and future other. The condemnation of prostitution was not just puritan bigotry; it was a recognition of a profound truth, which is that you and your body are not two things but one, and by selling the body you harden the soul. And that which is true of prostitution is true of pornography too. It is not a tribute to human beauty but a desecration of it.
– Roger Scruton, Beauty (2009)