A Whack on the Side of the Head by Roger von Oech, Ph.D., Warner Books, 1983, p. 23
Two men had an argument. To settle the matter, they went to a Sufi judge for arbitration. The plaintiff made his case. He was very eloquent and persuasive in his reasoning. When he finished, the judge nodded in approval and said, "That's right, that's right."
On hearing this, the defendant jumped up and said, "Wait a second, judge, you haven't even heard my side of the case yet." So the judge told the defendant to state his case. And he, too, was very persuasive and eloquent. When he finished, the judge said, "That's right, that's right."
When the clerk of court heard this, he jumped up and said, "Judge, they both can't be right." The judge looked at the clerk of court and said, "That's right, that's right."