Bookish Quotes: A good book

I've been reading Conspiracy of Lies by Kathryn Gauci over the last week or so. I will confess that I have met Kathryn a few times because of a shared love of historical fiction author Sharon Kay Penman which is part of the reason I wanted to give her books ago.

This book is a split narrative but predominantly set in WWII and tells the story of a female spy.

For today's Bookish Quote I am sharing a short passage from the latter part of the book. The book below was mentioned another time later in the book but I can't share that part. I like what the author says here about books teaching us things.

"Will we meet again, Fraulein Bouchard?" he asked
"We will, when the war has ended. In the meantime I want you to continue your French lessons. Will you promise me that?"
She gave him a French edition of a book as a keepsake, with a dedication written in French: To Oskar, a student who shows great promise. Your friend and teacher, Fraulein Bouchard.
"One day when you grow up to be a successful you man, you will be able to read this, and when you do, I would like to think you will remember me. It's by a very famous American writer," she told him.
He read the title, trying to formulate the words. "The Great Gatsby by F. Scott Fitzgerald. What's it about?"
"It's about a man who loves someone so much he reinvents himself to win her back."
Oskar looked puzzled. He wasn't sure what she meant.
"Oskar, one day you will understand that all good books teach us something. This one is very special. It teaches us that we can be anything we want, but we can't always have who we want."
"And I have something for you." He reached into his pocket and pulled out one of his toy soldiers."It's Frederick the Great. Papa said that even your Napoleon Bonaparte admired him."
Claire was deeply touched. "That's certainly true. I shall treasure it."