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 saying his friends "were all unanimously of opinion that you were the only person who from your near affinity to my grandfather, whose name is still in the greatest veneration, and your own known personal abilities and qualifications, could stand in the gap on this occasion and prevent opposition and expence and perhaps disgrace to the family". In early 1757 Walpole was out of Parliament after vacating Castle Rising until his election that year to King's Lynn, a seat he would hold until his retirement from the Commons in 1768. Walpole was a prominent opponent of the decision to execute