A Commonplace Book

There is nothing which cannot be answered by means of my doctrine," said a monk, coming into a teahouse where Nasrudin sat.

"And yet just a short time ago, I was challenged by a scholar with an unanswerable question," said Nasrudin.

"I could have answered it if I had been there."

"Very well. He asked, 'Why are you breaking into my house in the middle of the night?'"