My title explains itself. But it's misleading. There are more than forty reasons.



In fact, there are at least ten to the 82nd power, which, I am told, is the number of atoms in the universe. And that's just in ordinary matter, which makes up only 4.9% of the universe, the rest being dark matter and dark energy.



Each of my reasons is an independent point, so I have not organized this book by a succession of chapters or headings. After all, most people only remember a few big ideas or separate points after reading or listening to a book. I've never heard anyone say 'Oh, that was a good continuous-process-of-logically-ordered-argumentation' but I've often heard people say, 'Oh, that was a good point.'



Which takes me back to my main point: 'Why are you a Catholic?' is a good question.



A good question deserves a good answer. Here are forty of mine.