Not a fiction, but when I saw The God Delusion by Richard Dawkins in a shop, I opened this book and saw this quote:

“As a child, my wife hated her school and wished she could leave. Years later, when she was in her twenties, she disclosed this unhappy fact to her parents, and her mother was aghast: ‘But darling, why didn’t you come to us and tell us?’ Lalla’s reply is my text for today: ‘But I didn’t know I could.

I didn’t know I could.

I suspect – well, I am sure – that there are lots of people out there who have been brought up in some religion or other, are unhappy in it, don’t believe it, or are worried about the evils that are done in its name; people who feel vague yearnings to leave their parents’ religion and wish they could, but just don’t realize that leaving is an option.”

I knew immediately that I wanted to read this book, and I've really liked it.