"On the other hand, for all their virtues, romances have their defects, which Roberto should have known. As medicine teaches also about poisons, metaphysics disturbs with inopportune subtelties the dogmata of religion, ethics recommends magnificence (which is not of help to everyone), astrology fosters superstition, optics deceives, music rouses lust, geometry encourages unjust dominion, and mathematics avarice—so the art of Romance, though warning us that it is providing fictions, opens a door into the Palace of Absurdity, and when we have lightly stepped inside, slams it shut behind us."
January 1, 1970
https://en.wikiquote.org/wiki/The_Island_of_the_Day_Before