The ascent of the soul through love, which Plato describes in the Phaedrus, is symbolized in the figure of Aphrodite Urania, and this was the Venus painted by Botticelli, who was incidentally an ardent Platonist, and member of the Platonist circle around Pico della Mirandola. Botticelli's Venus is not erotic: she is a vision of heavenly beauty, a visitation from other and higher spheres, and a call to transcendence. Indeed, she is self-evidently both the ancestor and the descendant of the Virgins of Fra Filippo Lippi: the ancestor in her pre-Christian meaning, the descendant in absorbing all that had been achieved through the artistic representation of the Virgin Mary as the symbol of untainted flesh. The post-Renaissance rehabilitation of sexual desire laid the foundations for a genuinely erotic art, an art that would display the human being as both subject and object of desire, but also as a free individual whose desire is a favour consciously bestowed. But this rehabilitation of sex leads us to raise what has become one of the most important questions confronting art and the criticism of art in our time: that of the difference, if there is one, between erotic art and pornography. Art can be erotic and also beautiful, like a Titian Venus. But it cannot be beautiful and also pornographic--so we believe, at least. And it is important to see why. In distinguishing the erotic and the pornographic we are really distinguishing two kinds of interest: interest in the embodied person and interest in the body--and, in the sense that I intend, these interests are incompatible. (See the discussion in Chapter 2.) Normal desire is an inter-personal emotion. Its aim is a free and mutual surrender, which is also a uniting of two individuals, of you and me--through our bodies, certainly, but not merely as our bodies. Normal desire is a person to person response, one that seeks the selfhood that it gives. Objects can be substituted for each other, subjects not. Subjects, as Kant persuasively argued, are free individuals; their non-substitutability belongs to what they essentially are. Pornography, like slavery, is a denial of the human subject, a way of negating the moral demand that free beings must treat each other as ends in themselves.