(Cesare Beccaria (1735-1794), Italian jurist, philosopher. On Crimes and Punishments, Introduction (1764).
Thomas Carlyle attributes a similar utterance to Charles de Montesquieu, in History of Frederick the Great (1858-1865) bk. 16, ch. 1: "Happy the people whose annals are blank in history-books!")
The American Dream, the idea of the happy ending, is an avoidance of responsibility and commitment.
(Jill Robinson (b. 1936), U.S. novelist. As quoted in American Dreams, book 1 part 1, by Studs Terkel (1980).
The daughter of movie producer Dore Schary, Robinson had grown up in Hollywood and was referring obliquely to the movie industry's preference for happy endings.)