The philosophy professor warned the class he was going to give them a test. When the day came he entered the classroom, wordlessly placed his chair on the table and, turning to the blackboard, wrote, “Prove to me this chair does not exist.” Most of the nervous students began intently scribbling out long dissertations. But one member of the class wrote down just two words, and then handed his paper to the teacher. The professor had to smile when he read the student's answer: “What chair?”
哲學(xué)教授警告學(xué)生說,他要給他們一個測驗??荚嚹翘欤哌M教室,一言不發(fā),把他的椅子放在桌子上,轉(zhuǎn)身在黑板上寫:“向我證明這把椅子不存在。”大多數(shù)緊張的學(xué)生開始長篇大論地大寫特寫。但是,有一個學(xué)生只寫了幾個字,就交給老師。當(dāng)教授看到他寫的是“哪有椅子?”,只好微笑了。