I always ask: What is a book?
Mom said: books are the ladder of human progress.
I always ask: What is a book?
Dad said: books are the source of progress.
I always ask: What is a book?
Grandma said: Books are an ocean of knowledge.
I always ask: What is a book?
Grandpa said: books are a key to life.
I always ask: What is a book?
I will answer: books are our greatest wealth!
(self-created)