To touch the untouchable—an axiom which has belongs to the law of touch since Aristotle and runs through the work of Jean-Luc Nancy, as J. Derrida has remarked, seems inscribed at the heart of philosophy, the statut of which is laid down by Plato in the Symposium. Going back to this means playing again the relationship between sensible and intelligible, between body and flesh, between love and truth by weakening their opposition.