Many people go to school for an education._____（21）learn languages, history, geography, physics, chemistry and maths. Others go to school to learn a skill so that they can_____（32）a living. School_____（23）is very important and useful. Yet no one can learn everything from school. A teacher, no matter how much he_____（24）, can not teach his students everything they_____（25）to know. The teacher's job is to show his students how to read and how to_____（26）. So much more is to be learned _____（27）school by the students themselves.

It is always more important to know how to study by_____（28）than to memorize（熟记）some facts or formula（公式）. It is_____（29）quite easy to learn a_____（30）fact in history or a formula in mathematics. But it is very difficult to use a formula in_____（31）out a maths problem. Great scientists, such as Einstein, Newton and Galileo, didn't learn many things from school. But they were all so_____（32）that they invented so many things for mankind.

The_____（33）for their success is that they knew how to study. They read books that were not_____（34）at school. They worked hard all their lives, wasting not a single moment. They would ask many questions as they read and they did thousands of_____（35）.

21_____.