Some will never learn

A young man came to a master and asked, “How long is it likely to take me to attain enlightenment?”
Said the master, “Ten years.”

The young man was shocked. “So long?” he asked incredulously.
Said the master, “No that was a mistake. It will take you twenty years.”
The young man asked, “Why did you double the figure?”
Said the master, “Come to think about it, in your case it will probably be thirty.”

Some people will never learn anything because they grasp everything too soon. Wisdom, after all, is not a station you arrive at but a manner of traveling. If you travel too fast, you will miss the scenery.
To know exactly where you’re headed may be the best way to go astray. Not all those who loiter are lost.