The fundamental condition of the Christian-Islamic dialogue and of mutual tolerance represents the triumph over the exclusive fundamentalism that, in the Christian religion, found expression in an axiom accepted for centuries – that of extra ecclesiam nulla salus (outside the Church there is no salvation). The fundamentalist-exclusive interpretation of the Koran dogma extra islam nulla salus, still compulsory today, precludes any form of dialogue with and tolerance of people of other faiths. This is not because such an interpretation views Islam as the one true religion – every religion is entitled to this ex natura rei – but rather because it degrades Christians as devotees of polytheism, and thus as “infidels”, whereby they are definitive...