Source: Selected Folk Tales
Mullah Nasrudin used to cross people by boat. Once an arrogant grammar teacher paid him to go from one bank to the other of a wide and flowing river.
As soon as they left the bank, the teacher asked him if the crossing would be smooth.
-"Don't 'ask me' about it" - replied Nasrudin.
- Have you never studied grammar rules? - Asked the professor, noticing his way of speaking.
- No! - Replied Nasrudin.
"So you lost half your life," said the snobbish professor.
When they were halfway there, a storm hit them and the small boat began to fill with water.
Nasrudin then asked, "Do you know how to swim?"
- No! replied the master, trembling.
To which Nasrudin said: "So you have lost ALL of your life, because this boat is sinking."