
“The more we study, we the more discover / Our ignorance.”
Calderón, “Scenes from the <i>Magico Prodigioso</i>” fourth speech of Cyprian, as translated by Shelley, found in The Poetical Works of Percy Bysshe Shelley, Scott, William B, ed. https://archive.org/details/poeticalworksofp1934shel/page/577
Misattributed