Question: What ideas did this Italian philosopher, poet, essayist, and philologist, who wrote the poem L'infinito, come in touch with while living in a secluded town in the conservative Papal States?
Sentence (from "Giacomo Leopardi"): Giacomo Taldegardo Francesco di Sales Saverio Pietro Leopardi (] ; 29 June 1798 – 14 June 1837) was an Italian philosopher, poet, essayist, and philologist.
Relevant evidence: Yes