Few thinkers of our time embody the reconciliation of scientific rationality and Christian faith as Hans Küng does, as both can only together provide answers to the question of what holds the world together at its core. This volume presents key works by Küng on both dimensions, including: "Credo," which offers a contemporary and origin-oriented interpretation of the articles of faith. Küng's interpretation of the "Apostles' Creed" takes the questions of contemporary individuals seriously in accessible language. "The Beginning of All Things" addresses the limits of human knowledge: Why is there something rather than nothing? What is the beginning of the world and humanity? Is free will an illusion? The volume demonstrates that faith and natural science need not be opposites, but, when properly understood, are two complementary perspectives on the same reality.