'Hahn's book covers a wide range of topics drawn from various disciplines, assembled coherently and rigourously. Natural law and its relation to Catholic canon law, a global system regulating well over a billion faithful, is examined in a multi-faceted way that is both panoramic and specific, concluding with fifty theses that will generate and facilitate discussion.' Robert Ombres, University of Oxford
Introduction; 1. Nature as a source of validity for religious law; 2. Questions from a canonist's point of view; 3. Canon law between nature and culture; 4. Consequences for developing the law; 5. Conclusion.