The quest stands upon the edge of a knife. Stray but a little and it will fail to the ruin of all.
12 seconds sound clip from the The Lord of the Rings: The Fellowship of the Ring movie soundboard.
You can hear this line at 02:36:33 in the Blu-ray version of the movie.
Quote context
[...]
- Needless were none of the deeds of Gandalf in life. We do not yet know his full purpose.
- Do not let the great emptiness of Khazad-dum fill your heart, Gimli, son of Gloin.
- For the world has grown full of peril and in all lands love is now mingled with grief.
- What now becomes of this Fellowship?
- Without Gandalf, hope is lost.
- The quest stands upon the edge of a knife. Stray but a little and it will fail to the ruin of all.
- Yet hope remains while the Company is true.
- Do not let your hearts be troubled. Go now and rest for you are weary with sorrow and much toil.
- Welcome, Frodo of the Shire, one who has seen the Eye!
[...]