I originally saw the part in bold below in a youtube video that didn’t cite where this passage from Fulton Sheen came from. With a little bit of searching, I found that it came from a preface that he wrote for Radio Replies, Vol. 1. He also wrote the preface for Vol. 3.
Radio Replies, Vol. 1-3 were created in the 1930’s and 40’s by Father Leslie Rumble of Australia and Father Charles Mortimer Carty of Minnesota and contain over 4,300 questions and answers about Catholicism. They received an imprimatur from His Excellency Fr. John Gregory Murray who was the Archbishop of St. Paul, Minnesota at that time. There is a fourth volume (That Catholic Church: A Radio Analysis) and a fifth volume (Questions People Ask About the Catholic Church) that are harder to find in print but are available online in their entirety along with the first three volumes at radioreplies.info. In total the 5 volumes contain over 6,800 questions and answers, all rather neatly indexed and easily searchable online.
Here are brief biographies of Father Rumble and Father Carty that included the following quotes.
“I have often been mistaken, as most men at times. And it is precisely to make sure that I will not be mistaken in the supremely important matter of religion that I cling to a Church which cannot be mistaken, but must be right where I might be wrong. God knew that so many sincere men would make mistakes that He deliberately established an infallible Church to preserve them from error where it was most important that they should not go wrong.” —Father Rumble
“Firstly, since God is the Author of all truth, nothing that is definitely true can every really contradict anything else that is definitely true. Secondly, the Catholic Church is definitely true. It therefore follows that no objection or difficulty, whether drawn from history, Scripture, science, or philosophy, can provide a valid argument against the truth of the Catholic religion.” —Father Carty
From Venerable Fulton Sheen’s Preface to Radio Replies, Vol. 1
(For ease of reading, I split this into more paragraphs than are found in the original. The emphasis in bold is mine and was what I had originally read in the youtube video I referred to earlier. After finding and reading the entire Preface (which begins with one of Fulton Sheen’s most famous quotes), I decided to post this part in bold within the context of the first half of the Preface in which it’s found. When you’re finished reading, make sure you use the links provided to check out the rest of the Preface and Radio Replies more closely for yourself.)
There are not over a hundred people in the United States who hate the Catholic Church. There are millions, however, who hate what they wrongly believe to be the Catholic Church – which is, of course, quite a different thing. These millions can hardly be blamed for hating Catholics because Catholics “adore statues”; because they “put the Blessed Mother on the same level with God”; because they say “indulgence is a permission to commit sin”; because the Pope “is a Fascist”; because the “Church is the defender of Capitalism.” If the Church taught or believed any one of these things it should be hated, but the fact is that the Church does not believe nor teach any one of them. It follows then that the hatred of the millions is directed against error and not against truth. As a matter of fact, if we Catholics believed all of the untruths and lies which were said against the Church, we probably would hate the Church a thousand times more than they do.
If I were not a Catholic, and were looking for the true Church in the world today, I would look for the one Church which did not get along well with the world; in other words, I would look for the Church which the world hates. My reason for doing this would be, that if Christ is in any one of the churches of the world today, He must still be hated as He was when He was on earth in the flesh. If you would find Christ today, then find the Church that does not get along with the world. Look for the Church that is hated by the world, as Christ was hated by the world.
Look for the Church which is accused of being behind the times, as Our Lord was accused of being ignorant and never having learned. Look for the Church which men sneer at as socially inferior, as they sneered at Our Lord because He came from Nazareth. Look for the Church which is accused of having a devil, as Our Lord was accused of being possessed by Beelzebub, the Prince of Devils. Look for the Church which, in seasons of bigotry, men say must be destroyed in the name of God as men crucified Christ and thought they had done a service to God. Look for the Church which the world rejects because it claims it is infallible, as Pilate rejected Christ because He called Himself the Truth. Look for the Church which is rejected by the world as Our Lord was rejected by men.
Look for the Church which amid the confusion of conflicting opinions, its members love as they love Christ, and respect its Voice as the very voice of its Founder, and the suspicion will grow, that if the Church is unpopular with the spirit of the world, then it is unworldly, and if it is unworldly, it is other-worldly. Since it is other-worldly it is infinitely loved and infinitely hated as was Christ Himself. But only that which is Divine can be infinitely hated and infinitely loved. Therefore the Church is Divine.
If then, the hatred of the Church is founded on erroneous beliefs, it follows that basic need of the day is instruction. Love depends on knowledge for we cannot aspire nor desire the unknown. Our great country is filled with what might be called marginal Christians, i.e., those who live on the fringe of religion and who are descendants of Christian living parents, but who now are Christians only in name. They retain a few of its ideals out of indolence and force of habit; they knew the glorious history of Christianity only through certain emasculated forms of it, which have married the spirit of the age and are now dying with it. Of Catholicism and its sacraments, its pardon, its grace, its certitude and its peace, they know nothing except a few inherited prejudices. And yet they are good people who want to do the right thing, but who have no definite philosophy concerning it. They educate their children without religion, and yet they resent the compromising morals of their children. They would be angry if you told them they were not Christian, and yet they do not believe that Christ is God. They resent being called pagans and yet they never take a practical cognizance of the existence of God. There is only one thing of which they are certain and that is that things are not right as they are. It is just that single certitude which makes them what might be called the great “potentials,” for they are ready to be pulled in either of two directions.
Within a short time they must take sides; they must either gather with Christ or they must scatter; they must either be with Him or against Him; they must either be on the cross as other Christs, or under it as other executioners. Which way will these marginal Christians tend? The answer depends upon those who have the faith. Like the multitudes who followed Our Lord into the desert, they are as sheep without a shepherd. They are waiting to be shepherded either with the sheep or goats. Only this much is certain. Being human and having hearts they want more than class struggle and economics; they want Life, they want Truth, and they want Love. In a word, they want Christ.