Books are our greatest friends. They tell us stories of every country in the world. They give us all kinds of knowledge.

   Life is short. One can't know and see everything in the world. With the help of books, one is able to know what happened thousands of years ago and what is happening in every part of the world now. Books give us not only knowledge but also pleasure. Reading good books is the best way of spending our free time. And many beautiful stories for children are interesting and full of wisdom(智慧).

   All the great men love books. Knowledge from books helps them to succeed(成功)because books are source(源泉)of knowledge and knowledge is the source of success.