知识不仅从书本获得

As we all know,we can learn a lot from books.
For example,we can learn a lot about history through reading a historical story book.
However,knowledge can also be gained through other ways.
Watching television is a good way of gaining knowledge.
The sound and the lively pictures can help us learn more.
Surfing on the net is also a very efficient way to learn a lot.
By surfing on the net ，we can save much time.
In addition,life is also our teacher.
We can gain knowledge as well if we observe daily life carefully.
Knowledge can be gained not only from books.

你们的弱智老师不会发现我作文里的错吧...

我们能从书本上学习到知识，但并不代表我们的知识就只能从书本上获取。生活处处有学问，只要爱观察，爱学习，爱思考，我们在任何地方都可以学到知识。
知识本身于无形，而我们却可以在有形与无形当中获取知识。书本是有形，而书本内容与思想却是无形的；生活是有声有色的，它丰富内容的起伏往往与书本内容同等可贵，甚至还不只呢。

这样行吗？呵呵。