everything is best: I didn't write this

Nobody talks about how zen is one of the funniest religions around. Here's a koan I saw somewhere.

Everything is Best

One day Banzan was walking through a market. He overheard a customer say to the butcher, "Give me the best piece of meat you have." "Everything in my shop is the best," replied the butcher. "You can not find any piece of meat that is not the best." At these words, Banzan was enlightened.