However slight the terrestrial intercourse between Dante and Beatrice or Petrarch and Laura, time changes the proportion of things, and in later days it is preferable to have fewer sonnets and more conversation.
There are no more uses of "Petrarch" in the book.
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Petrarch helped to popularize the term "Dark Ages".
And now here is my pocket Petrarch, and not another word shall I say of this case until we are on the scene of action.
Arthur Conan Doyle -- The Adventures of Sherlock Holmes