The contributions to this collection deal with the fundamental problem of unity, which plays a decisive role in many contemporary debates (even when this role is not acknowledged). Questions like whether there can be unities that persist through time a ' e.g. persons who remain the same throughout their lives a ' are discussed from various perspectives. Is such an idea possible at all, and if so, what role do concepts like force, capacity, and disposition play in this context?

This volume collects work from contemporary philosophers and theologians regarding justifications for the existence of God. Both classical and new proofs of God s existence are presented and critically discussed. The contributions also deal with questions regarding what sense such justifications have and what sort of meaning can come from arguing for the rationality of religious belief."