Taking the use of the logos in Ratzinger's Regensburg Lecture as its starting point, the thesis expands three horizons in Ratzinger studies. Firstly, it extends the understanding of Ratzinger as the author of a logos theology. Secondly, it shows how the Regensburg theme of the full breadth of reason, represented by the logos, is applied by Ratzinger in a critique of secular modernity. Thirdly, it claims that the logos theology of Joseph Ratzinger can provide a repair of the culture of (...) human rights. The thesis argues that if human rights are set exclusively within the framework of secular modernity, they fall sick and fail to meet the criterion of inclusivity and universality. Set within the framework of a Ratzingerian logos theology, their power is strengthened and their promise of inclusivity and universality restored. The thesis calls for a mutually reparative dialogue about human rights, based on the full breadth of reason, between the three constituencies of Christianity, the religions and secular modernity. The thesis concludes that the Regensburg Lecture, far from damaging the dialogue with Islam, and with secular modernity, opens up a new intercultural bridge based on a mutually enriching engagement with a logos-based culture of human rights. (shrink)