When I was doing my Clinical Pastoral Education at a hospital in Bloomington, Illinois during the summer of 2004, I worked with four other chaplains to provide pastoral care to the patients and their families.
One day one of my fellow chaplains - a Methodist pastor who did not accept all of the teachings of the Methodist denomination - asked me, "If you weren't Catholic, what would would you be?"
It was a question that had never been posed to me before so after a moment's thought, I said, "I suppose I'd be Orthodox."
He say, "No. I mean what Protestant denomination would you be?"
This time my response required no consideration. I looked at him and said, "Simply from my study of history alone, I could not be a Protestant. None have their beginnings before the mid 1500s and yet they claim to be the Church Jesus founded. It simply is historically untrue and I could not be true, from the vantage point of history alone."
He looked at me and said, "Huh." And thus the conversation ended, and it was brought up again.
Which brings me to a new coffee mug the illustrious Father Zuhlsdorf has available sporting my favorite quotation from Blessed John Henry Cardinal Newman:
You can your mug here, in a variety of sizes.