Giacomo Leopardi Quotes
He who doubts, knows - knows as much as can be known.
Leopardi, Giacomo. Zibaldone. Translated by Michael Caesar and Franco D'Intino, Farrar, Straus and Giroux, 2013.
Proof in a scientific and mathematical context is very different from the legal concept of proof. For Feynman, proof consisted of both being able to deduce a statement in much the same way as a proof is offered in plane geometry and being able to construct an experiment which will demonstrate the validity (confirm the prediction of what will happen all cases. As a theoretical physicist, most of his proofs were of the mathematical, deductive kind. There are many phenomena in mathematics and science that were, and are, known long before someone was able to offer a proof.
Count Giacomo Taldegardo Francesco di Sales Saverio Pietro Leopardi was an Italian philosopher, poet, essayist, and philologist. He is considered the greatest Italian poet of the nineteenth century and one of the most important figures in the literature of the world, as well as one of the principals of literary romanticism; his constant reflection on existence and on the human condition—of sensuous and materialist inspiration—has also earned him a reputation as a deep philosopher. He is widely seen as one of the most radical and challenging thinkers of the 19th century but routinely compared by Italian critics to his older contemporary Alessandro Manzoni despite expressing "diametrically opposite positions." Although he lived in a secluded town in the conservative Papal States, he came into contact with the main ideas of the Enlightenment, and, through his own literary evolution, created a remarkable and renowned poetic work, related to the Romantic era. The strongly lyrical quality of his poetry made him a central figure on the European and international literary and cultural landscape.
