Susanna Clarke said this quote
“ Ah, but sir,' said Lascelles, 'it is precisely by passing judgments upon other people's work and pointing out their errors that readers can be made to understand your own opinions better. It is the easiest thing in the world to turn a review to one's own ends. One only need mention the book once or twice and for the rest of the article one may develop one's theme just as one chuses. It is, I assure you, what every body else does. ”