Interestingly, Grotius already dealt in his days with the challenging question as to where, on the one hand, unification of law across borders is desirable and where, on the other hand, national differences, often based on cultural diversity, stand in the way of such unification.
Nowadays, this is still one of the core questions in the creation and further elaboration of a new corpus iuris monetae for the euro. I shall enter into the details of this new body of monetary and financial law later.