A pedantic bore forced a conversation with a fellow passenger on a coast to coast flight, and made a great parade of his knowledge. The passenger listened as long as he could. Looking at him gravely, he said, "My friend, you and I know all that there is to know."
"How is that?" asked the bore, pleased with what he thought was a complimentary association.
"Well," began the traveler, "you know everything there is to know except that you are a bore, and I know that."
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