根据对话内容,用方框中所给词的适当形式填空.(其中有一词多余)

teach, student, invent, himself, at, job, importance, know

School education is very important and useful. Yet no one can learn everything at school and a teacher
cannot teach his 1 everything they want to know.
His2 is to show his students how to learn. He teaches them how to read and how to think. So much
more is to be learned outside school by the students 3 .
It is always more4 to know how to study by oneself. It is quite easy to learn something, but it is difficult to use it to solve problems. Great inventors do not get everything5 school, but they still can6 many things and change the world a lot.
How can the inventors do all of this? One of the answers is: they7 how to study. A lot of things are not
taught in the classroom. They get a lot of knowledge by reading outside school. They work hard and never give up all their lives.

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