Horace Walpole turns to the letters and argues that: Walpole's numerous letters are often used as a historical resource. In one, dating from 28 January 1754, he coined the word serendipity which he said was derived from a "silly fairy tale" he had read, "The Three Princes of Serendip". The oft-quoted epigram, "This world is a comedy to those that think, a tragedy to those that feel", is from a letter of Walpole's to Anne, Countess of Ossory, on 16 August 1776. The original, fuller version appeared in a letter to Sir Horace Mann on 31 December 1769: "I have often said,
Horace Walpole helmet that appears as a result of supernatural causes. However, that moment, along with the rest of the unfolding plot, includes a mixture of both ridiculous and sublime supernatural elements. The plot finally reveals how Manfred's family is tainted in a way that served as a model for successive Gothic plots. From 1762 on, Walpole published his "Anecdotes of Painting in England", based on George Vertue's manuscript notes. His memoirs of the Georgian social and political scene, though heavily biased, are a useful primary source for historians. Smith, noting that Walpole never did any work for his well-paid government sinecures,