The basic doctrines that distinguish Christianity from all other religions have, at their root, assumptions that also differentiate Catholicism from all other forms of Christianity. I have spent some time illustrating this phenomenon in the case of several dogmas—the Incarnation, the authority of Christ, the exclusive claim to grace, and the baptismal nature of the Gospel. However, if you are just joining me now, don’t be daunted. Each essay is independent in its argument, since