This older wording was folded into the complete canonical item below.
He Knows the Shepherd
Story★★★I read about an old pastor who had been forced to retire because years of preaching had caused his voice to crack. Although a humble man, he was invited to a high-society luncheon by a friend. The person heading up the luncheon requested a famous actor who was present to recite something for the guests. Agreeing to do so, he asked if anyone had a specific request.
The old pastor thought for a moment and said, “How about the Twenty-Third Psalm?” The actor replied, “That’s an unusual request, but I happen to know it.
I’ll do it on one condition, though: you recite it after me.” The old pastor hadn’t bargained for that, but for the sake of the Lord, he agreed.
The actor stood up and recited the Twenty-Third Psalm with the great intonation of his lyrical voice. When he finished, everyone applauded.
The old pastor then stood up and went trough the psalm in his humble way with a cracking voice. When he was done, there was not a dry eye in the room.
Sensing the emotion of the moment, the actor stood up and said, “You clapped for me, but you wept for him. The difference is obvious: I know the psalm, but he knows the Shepherd.” –The Master’s Plan For The Church, 120-121.
The Master's Plan For The Church, 120-121.
The point
Quintilian's statement that some who might have become excellent scholars were prevented by being already convinced of their scholarship.