What satirical work from the 18th century criticized the vanity of the upper classes?

One prominent satirical work from the 18th century that criticized the vanity of the upper classes is Jonathan Swift's "A Modest Proposal," published in 1729. Although it addresses the dire situation of the poor in Ireland, it also indirectly mocks the indifference and vanity of the wealthy elite by suggesting an outrageous solution to poverty. Swift's biting irony highlights the moral blindness of the upper classes, making them complicit in the suffering of the lower classes. This work exemplifies the use of satire to expose societal flaws and provoke thought about social responsibility.