A line you love even if you don't necessarily love the source.
Anyone ever come across a line that grabbed them even if the work as a whole wasn't something that you absolutely loved?
"Just the place to bury a crock of gold," said Sebastian. "I should like to bury something precious in every place that I've been happy, and then, when I was old, and ugly, and miserable, I could come back, and dig it up, and remember." -- Evelyn Waugh, Brideshead Revisited.