Why I am a Catholic

The difficulty of explaining “why I am a Catholic” is that there are ten thousand reasons all amounting to one reason: that Catholicism is true. I could fill all my space with separate sentences each beginning with the words, “It is the only thing that…” As, for instance, (1) It is the only thing that really prevents a sin from being a secret. (2) It is the only thing in which the superior cannot be superior; in the sense of supercilious. (3) It is the only thing that frees a man from the degrading slavery of being a child of his age. (4) It is the only thing that talks as if it were the truth; as if it were a real messenger refusing to tamper with a real message. (5) It is the only type of Christianity that really contains every type of man; even the respectable man. (6) It is the only large attempt to change the world from the inside; working through wills and not laws; and so on.
Or I might treat the matter personally and describe my own conversion; but I happen to have a strong feeling that this method makes the business look much smaller than it really is. Numbers of much better men have been sincerely converted to much worse religions. I would much prefer to attempt to say here of the Catholic Church precisely the things that cannot be said even of its very respectable rivals. In short, I would say chiefly of the Catholic Church that it is catholic. I would rather try to suggest that it is not only larger than me, but larger than anything in the world; that it is indeed larger than the world. But since in this short space I can only take a section, I will consider it in its capacity of a guardian of the truth.