The Teacher

1996–1997 was declared International Nasreddin Year by UNESCO.
*The Teacher* is a story about how he asks the students if they knew what he was going to teach that day. Nasruddin walks out of the class when the kids said, "No!" saying he did not want to teach them if they didn't know.
Next class he again asked the same question to which some clever students said, "Yes!". Nasruddin walked out of the class again saying he did not want to teach them as they already knew everything.