"It's like in the great stories, Mr. Frodo. The ones that really mattered. Full of darkness and danger they were. And sometimes you didn’t want to know the end… because how could the end be happy? How could the world go back to the way it was when so much bad had happened? But in the end, it’s only a passing thing… this shadow. Even darkness must pass. (Sam - The Lord of the Rings: The Two Towers)

(From The Lord of the Rings screenplay by Peter Jackson, Fran Walsh, Philippa Boyens; incorrectly attributed to JRR Tolkien)"
— J.R.R. Tolkien