"The way I see it, every life is a pile of good things and bad things. The good things don't always soften the bad things, but vice versa, the bad things don't always spoil the good things and make them unimportant."
- The Doctor, Season 5, Episode 10

"Happiness can be found, even in the darkest of times, if only one remembers to turn on the light."
- Albus Percival Wulfric Brian Dumbledore, The Prisoner of Askaban