“If I work hard, how many years will it take me to become a master?” Matajuro asked.  “Ten years,” Banzo said.

“If I work far more intensively,” the student said, “how long would it take me?” Banzo estimated thirty years.

“Why is that? Matajuro said. “First you say ten and now thirty years. I will undergo any hardship to master this art in the shortest time.”

“Well,” said Banzo, “in that case you will have to remain with me for seventy years. A man in such a hurry as you are to get results seldom learns quickly.”

- Zen Parable