In "The Difficult Path," how does the author convey Tianyi's viewpoint that the ability to read is more valuable than any treasure? Tianyi explains that women should have the same educational opportunities as men.

Once Tianyi begins reading books she'd taken by force, she wants to acquire more.

When Tianyi figures out Lingsi can read, she asks her to stay aboard the ship.

Tianyi tells Lingsi of a time when she went to battle with a man to win a chest of books.