Um um, I don’t really think about quotes all that much, really. This though:
"If you love something, set it free. If it doesn’t come back, it probably died of sadness because it thought you loved it."
I saved this from a Night Vale Podcast tweet a while back. Not necessarily a quote, but it really resonated with my annoyance at films/novels that start drama by using the whole “I love them so I need to let them go” trope. Sit down. Be selfish. Life is too important to throw things away in exchange for an existence drowned in mediocrity.