Did Jane Austen say “The person, be it gentleman or lady, who has not pleasure in a good novel, must be intolerably stupid”?

Did Jane Austen say “The person, be it gentleman or lady, who has not pleasure in a good novel, must be intolerably stupid”?

Found word for word. Yes. The text appears in works attributed to Jane Austen. Source and location below.

"The person, be it gentleman or lady, who has not pleasure in a good novel, must be intolerably stupid. I have read all Mrs. Radcliffe's works, and most of them with great pleasure. The Mysteries of Udolpho, when I had once begun it, I could not lay down again; I remember finishing it in two days--my hair standing on end the whole time."
Northanger Abbey — Jane Austen, CHAPTER 14 · ¶502 · Public domain (US), Project Gutenberg #121 · source

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