If miracles were necessary to convince men 2,000 years ago, why not today?

The Catholic Answers

Miracles were necessary during the preparatory stages of religion, and, above all, during the earliest years of Christianity that the final perfection of that religion might be rapidly and firmly established. Once that true religion was solidly established under the form of the Catholic Church, there was no longer the same need. The Catholic Church is evidence enough in herself, if any man will study the facts without prejudice. However, miracles still occur in the world, and a study of the happenings, say, at Lourdes, will provide any man with sufficient evidence if he approach the matter with a fair and open mind.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty