I love this clip from The Lord of The Rings: Fellowship of the Ring.
The first part about Gollum has such strong parallels with OCD that it makes me wince every time I hear it. The last part lends itself well to moments of despair in the face of daunting challenges. I think of these words in such moments. I think Tolkien was a master story teller to embroider so many metaphors and aphorisms into a seemingly simple story.