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