Flannery O'Connor on Catholicism, the Priesthood and the Catholic Church

Christ was crucified on earth and the Church is crucified by all of us, by her members most particularly, because she is a church of sinners. Christ never said that the Church would be operated in a sinless or intelligent way, but that it would not teach error. This does not mean that each and every priest won’t teach error, but that the whole Church speaking through the Pope will not teach error in matters of faith. The Church is founded on Peter who denied Christ three times and couldn’t walk on the water by himself. You are expecting his successors to walk on the water.

From a letter by Flannery O'Connor in response to a friend's criticism of the Catholic Church's shortcomings.