A stranger knocked at the door of the Teacher late at night.

" What urgent business has brought you here at this hour ?" asked the Teacher.

"The most urgent business there is, master," replied the stranger," I am searching for a good Teacher."

" How long have you been seeking ?" asked the Teacher.

"For 10 long years," replied the stranger earnestly.

" And you have not yet found even one ?"asked the Teacher.

" Oh, I found many but they were not perfect. There was always some flaw in their teaching, " replied the stranger.

The Teacher asked the stranger to sit down and told him a story. There was once a thirsty dog who went far to find water. He ran from well to well and pond to pond but he did not like the look of the water. There was always something wrong with it. So the dog died , not from thirst but from exhaustion.

The stranger stayed with the teacher for the rest of his life.