It was the last day of the final examination in a college. On the steps of a building, 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 the 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 was nervous expression. The professor watched the worried faces before him, and then asked, "How many of you have completed(完成) 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, your education has just begun."

    The years have obscured the name of this professor, but not the lesson he taught.

—Because he is ill.

    In the United States, headmasters and teachers discipline(惩戒) students in several ways. The teacher often writes or {#blank#}1{#/blank#} the student's parents. Sometimes students have to stay at {#blank#}2{#/blank#}for an extra hour. If a student behaves {#blank#}3{#/blank#}, the headmaster can suspend (勒令…休学) the student. The student cannot come to school for one, two, or three days, Sometimes, when the headmaster suspends some students, they are {#blank#}4{#/blank#}. "A three-day vacation!" they thought.

    Mr Lazares, a headmaster, didn't like to suspend students. When the boy who was not behaving well in class was sent to his {#blank#}5{#/blank#}, Mr Lazares telephoned the boy's parents. "If you come to school with your son, I won't {#blank#}6{#/blank#} him having classes," he said. The boy's father came to school and went with his son to every {#blank#}7{#/blank#}. Other students stared at the boy and his father. The boy was embarrassed. After that, he behaved better.  He didn't want his father to come to school {#blank#}8{#/blank#}. Other students behaved better, too. They thought, "I don't want my {#blank#}9{#/blank#}to come to school!"

    That year, about 60 parents came to school with children who didn't behave well. The next year, {#blank#}10{#/blank#}parents had to come to school. The students were behaving better.