It was the last day of the final examination in acollege. On the steps of buildings, a group of engineering students werewaiting for the last exam. On their faces was confidence.
They knew the exam would be easy. The professor hadsaid they could bring any books or notes during the test.
Right after they came into the classroom, theprofessor handed out papers. There were only five questions on it.
Three hours passed. Then the professor began tocollect the papers. The students no longer looked confident. On their faceswere nervous expression. The professor watched the worried faces before him,and then asked, "How many of you have completed all five questions?" Nohand was raised. "How many of you have answered four?" Still nohands." Three? Two?" the students moved restlessly in their seats. "One,then? Certainly somebody has finished one." But the class kept silent. Theprofessor said, "That is exactly what I expected. I just want to make youknow clearly that even though you have completed four years of engineering，there arestill many things about the subject you don't know. These questions you couldnot answer are common in everyday practice." Then, smiling, he added, "Youwill all pass this course. But remember your education had just began."
The yours hasobscured the name of thisprofessor, but not the lesson he taught. The students will remember it clearlyforever.
