"Giacomo Leopardi's Zibaldone, the Least Known Masterpiece of European Literature" ;; review in New Republic, 8November2013 ,, by Adam Kirsch ::
"But there is nothing in all the thousands of pages of the Zibaldone to suggest that the world ever presented itself to Leopardi under the aspect of joy. What he had instead was the ambiguous pleasure of understanding—the power of reasoning out, in flashes of grim exaltation, why the unhappy world had no choice but to be unhappy. Everyone, perhaps, sees only as much of the world as his nature allows him to see. But for Leopardi, the connection between inner and outer reality was especially immediate, in a way that is characteristic of poetry, not philosophy. Even in the Zibaldone, then, he remains a poet; and perhaps this book is most significant as a vast objective correlative—bringing us as close as we can come, or want to come, to the brilliant bleakness of his inner life."