The books in the library are state property and public property, so they can't be kept for themselves. If you think a book is good, you can go to a bookstore or buy it online. Forget it. You stole the book. What if someone wants to read it again? Think about it from another angle. What would you think if someone stole the book you wanted to read? What a selfish idea you have! Only by obeying the rules of the library can we facilitate others and ourselves at the same time.