A fellow went to a Zen master and said, “If I work very hard, how soon can I be enlightened?”
The Zen master looked him up and down and said, “Ten years.”
The fellow said, “No, listen, I mean if I really work at it, how long—”
The Zen master cut him off. “I’m sorry. I misjudged. Twenty years.”
”Wait!” Said the young man, “You don’t understand! I’m—”
“Thirty years,” said the Zen master.