Did Mary Shelley say “Nothing is so painful to the human mind as a great and sudden change”?

Did Mary Shelley say “Nothing is so painful to the human mind as a great and sudden change”?

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

… my eyes. The rain had ceased for a moment, and I saw the fish play in the waters as they had done a few hours before; they had then been observed by Elizabeth. Nothing is so painful to the human mind as a great and sudden change. The sun might shine or the clouds might lower, but nothing could appear to me as it had done the day before. A fiend had snatched from me every hope of future happiness; no creature had ever been so miserable as I was; so frightful an event is single in the history of man. But why should I dwell upon the incidents that followed this last overwhelming event? Mine has been a tale of horrors; I have reached their acme, and what I must now relate can …
Frankenstein; Or, The Modern Prometheus — Mary Wollstonecraft (Godwin) Shelley, Chapter 23 · ¶615 · Public domain (US), Project Gutenberg #84 · source

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