From the letter of St. Ambrose of Optina (letter 178)
In our monastery, the eighty-year-old hieromonk read the Bible too much and stopped partaking of the Holy Mysteries, and stayed in this position for more than five years. No one's persuasion could dissuade him from a false opinion. One brother had a good idea to take away the Bible from him, and this taking away greatly helped the cause, of course, with the help of God. With a weakened memory, he could no longer object and agreed to partake, and a few months later he died peacefully. His name is Vitaly. Pray for him.